Comparative Structures and Functions in Different Species

Life Boot Camp
5.10A #2
 
Compare the structures and functions of
different species that help them live and survive
such as hooves on prairie animals or webbed
feed in aquatic animals
51. Which numbered part of the
sunflower is MAINLY responsible
for photosynthesis?
A
 
Part 1
B
 
Part 2
C
 
Part 3
D
 
Part 4
51. Which numbered part of the
sunflower is MAINLY responsible
for 
photosynthesis
?
A
 
Part 1
B
 
Part 2
C
 
Part 3
D
 
Part 4
52. A plant’s stem—
A 
 
supports the plant
B 
 
produces seeds for the plant
C 
 
anchors the plant in the soil
D 
 
absorbs water and minerals from the soil
52. A plant’s stem—
A 
 
supports the plant (holds it up)
B 
 
produces seeds for the plant
C 
 
anchors the plant in the soil
D 
 
absorbs water and minerals from the soil
53. Which bird food pictured below is BEST for
swimming?
53. Which bird food pictured below is BEST for
swimming
?
54. What specialized structures do deer have
that help them survive against predators?
A
 
Warm, brown hair
B
 
Fast running bodies
C
 
Good digestive systems
D
 
Large and intelligent brains
54. What 
specialized structures 
do 
deer
 have
that help them 
survive against predators
?
A
 
Warm, brown hair
B
 
Fast running bodies
C
 
Good digestive systems
D
 
Large and intelligent brains
55. Polar bears have thick, white hair. What
advantage does that give the polar bears?
A
 
More people will hunt them for their fur.
B
 
They look bigger and impress their enemies.
C
 
They hunt better and can catch more food.
D
 
They stay warmer in very cold climates.
55. 
Polar bears have thick, white hair
. What
advantage does that give the polar bears?
A
 
More people will hunt them for their fur.
B
 
They look bigger and impress their enemies.
C
 
They hunt better and can catch more food.
D
 
They stay warmer in very cold climates.
56. Which of the following is NOT a way desert
animals have adapted to survive in the desert?
A
 
Grow long, thick fur
B
 
Are active at night
C
 
Survive on little water
D
 
Live in burrows
56. Which of the following is 
NOT
 a way 
desert
animals 
have adapted to survive in the desert?
A
 
Grow long, thick fur
B
 
Are active at night
C
 
Survive on little water
D
 
Live in burrows
57. Animals have adaptations that help them
survive.  One example of this is the hawk’s
strong talons.  What primary purpose does this
adaptation serve?
A
 
Protection from predators
B
 
Catching and eating food
C
 
Increased flying speed
D
 
Protection from prey
57. Animals have adaptations that help them
survive.  One example of this is the 
hawk’s
strong talons
.  What primary purpose does this
adaptation serve?
A
 
Protection from predators
B
 
Catching and eating food
C
 
Increased flying speed
D
 
Protection from prey
58. Which of the following is an example of an adaptation of an
animal’s body that would improve its chances of survival in a
specific environment?
A 
 
An armadillo digging a hole under a fence
B
 
 
A chameleon changing colors to hide from a predator
C
 
 
Geese flying in a V formation
D
 
 
A gibbon swinging from branch to branch to escape a
 
predator
58. Which of the following is an example of an 
adaptation
 of an
animal’s body 
that would improve its chances of survival 
in a
specific environment?
A 
 
An armadillo digging a hole under a fence
B
 
 
A chameleon changing colors to hide from a predator
C
 
 
Geese flying in a V formation
D
 
 
A gibbon swinging from branch to branch to escape a
 
predator
59. Armadillos and coral snakes both live in Texas.  When an
armadillo is threatened, it curls its armored body up like a ball.
A coral snake curls its tail into a tight spiral and holds it up
when an enemy is near. Although these animals are very
different, what is one way in which they are similar?
A
 
They both live in the water.
B
 
They have hard outer coverings.
C
 
They have ways to protect themselves.
D
 
They attack their enemies with poison.
59. Armadillos and coral snakes both live in Texas.  When an
armadillo is threatened, 
it curls its armored body up like a ball
.
A coral snake 
curls its tail into a tight spiral and holds it up
when an enemy is near
. Although these animals are very
different, what is one way in which they are 
similar
?
A
 
They both live in the water.
B
 
They have hard outer coverings.
C
 
They have ways to protect themselves.
D
 
They attack their enemies with poison.
60. The flowers that grow on the floor of a tropical forest have
long stems.  How does this adaptation help them survive in
their environment?  Long stems—
A
 
 
protect them from getting too hot
B
 
 
make it easier for them to get sunlight
C
 
 
prevent them from being eaten
D
 
 
make it easier to pull them up
60. The flowers that grow on the 
floor of a tropical forest have
long stems
.  How does this adaptation help them survive in
their environment?  Long stems—
A
 
 
protect them from getting too hot
B
 
 
make it easier for them to get sunlight
C
 
 
prevent them from being eaten
D
 
 
make it easier to pull them up
61. Bears and foxes that live in warm areas usually have dark-
colored fur. Polar bears and arctic foxes that live in cold places
have white fur because it helps them—
A
 
find prey
B
 
swim fast
C
 
find berries
D
 
hide from predators
61. Bears and foxes that live in warm areas usually have dark-
colored fur. Polar bears and arctic foxes that 
live in cold places
have white fur 
because it helps them—
A
 
find prey
B
 
swim fast
C
 
find berries
D
 
hide from predators
62. Since all living things need nutrients (food) in order to
survive, why can plants survive in a clear, closed system but
animals cannot?
A
 
Plants are not living things, but animals are.
B
 
Plants can make their own food, but animals cannot.
C
 
Plants can live for long periods of time without nutrients.
D
 
Plants take in and give off oxygen, but animals do not.
62. Since all living things need nutrients (food) in order to
survive, why can 
plants survive in a clear, closed system but
animals cannot
?
A
 
Plants are not living things, but animals are.
B
 
Plants can make their own food, but animals cannot.
C
 
Plants can live for long periods of time without nutrients.
D
 
Plants take in and give off oxygen, but animals do not.
63. A green tree frog lives in a forest. How does the frog's green
color help it to survive?
A
 
By helping the frog find other frogs
B
 
By keeping the frog cool
C
 
By making the frog hard to see when sitting on leaves
D
 
By allowing the frog to make its own food
63. A green tree frog lives in a forest. How does the 
frog's green
color
 help it to survive?
A
 
By helping the frog find other frogs
B
 
By keeping the frog cool
C
 
By making the frog hard to see when sitting on leaves
D
 
By allowing the frog to make its own food
64. What advantage does the walking stick pictured above have
for survival in its environment?
A
 
It lives on leaves and tree branches.
B
 
It blends in with its environment.
C
 
It eats the leaves from plants.
D
 
It sheds its skin every year.
64. What advantage does the 
walking stick 
pictured above have
for 
survival
 in its environment?
A
 
It lives on leaves and tree branches.
B
 
It blends in with its environment.
C
 
It eats the leaves from plants.
D
 
It sheds its skin every year.
65. The cactus plant shown above lives in a desert environment.  What
characteristic of this plant could be found in many other desert plants?
A
 
A deep root system for gathering water
B
 
Lush growth that serves to trap water if it rains
C
 
Broad leaves that protect the plants from the hot sun
D
 
Leaves and stems that are adapted to conserve water
 
65. The cactus plant shown above lives in a desert environment.  What
characteristic of this plant could be found in many other 
desert plants
?
A
 
A deep root system for gathering water
B
 
Lush growth that serves to trap water if it rains
C
 
Broad leaves that protect the plants from the hot sun
D
 
Leaves and stems that are adapted to conserve water
 
66. Animals have adaptations that help them
survive in their environment.  One example of
this is the giraffe’s long neck.  What primary
purpose does this adaptation serve?
A
 
Protection from heat
B
 
Gathering of food
C
 
Protection from predators
D
 
Increased speed
66. Animals have adaptations that help them
survive in their environment.  One example of
this is the 
giraffe’s long neck
.  What primary
purpose does this adaptation serve?
A
 
Protection from heat
B
 
Gathering of food
C
 
Protection from predators
D
 
Increased speed
67. A hover fly looks like a honey bee.  Which statement BEST
explains how this adaptation helps the hover fly survive?
Looking like a honey bee—
A
 
keeps other animals away from the hover fly’s food
B
 
keeps other animals away from the hover fly’s home
C
 
allows the hover fly to blend in with its environment
D
 
keeps some predators from trying to eat the hover fly
 hover fly
 
 
honey bee
 
67. A hover fly looks like a honey bee.  Which statement BEST
explains how this adaptation helps the hover fly survive?
Looking like a honey bee
A
 
keeps other animals away from the hover fly’s food
B
 
keeps other animals away from the hover fly’s home
C
 
allows the hover fly to blend in with its environment
D
 
keeps some predators from trying to eat the hover fly
 hover fly
 
 
honey bee
 
68. What is the primary function of the large leaves
found on seedlings growing in a forest?
A
 
To provide shade for the root systems
B
 
To get rid of excess water that is entering through
 
the roots
C
 
To allow for leaf damage by insects
D
 
To gather as much light as possible for
 
photosynthesis
68. What is the primary function of the 
large leaves
found on seedlings growing in a 
forest
?
A
 
To provide shade for the root systems
B
 
To get rid of excess water that is entering through
 
the roots
C
 
To allow for leaf damage by insects
D
 
To gather as much light as possible for
 
photosynthesis
69. Barnacles and corals are two types of animals that
live in the ocean.  Both animals build a hard layer of
calcium around their soft body parts.  What is the
MOST likely reason that they build these layers?
A
 
Prepare them for reproduction
B
 
Protect them from predators
C
 
Help them capture food
D
 
Keep them from drying out
69. Barnacles and corals are two types of animals that
live in the 
ocean
.  
Both animals build a hard layer of
calcium around their soft body parts
.  What is the
MOST likely reason that they build these layers?
A
 
Prepare them for reproduction
B
 
Protect them from predators
C
 
Help them capture food
D
 
Keep them from drying out
70. How would looking like a poisonous dart frog help
a non-poisonous frog survive? This adaptation helps
the frog—
A
 
find shelter
B
 
attract prey
C
 
frighten predators
D
 
blend with its environment
70. How would 
looking like a 
poisonous
 dart frog 
help
a non-poisonous frog survive? This adaptation helps
the frog—
A
 
find shelter
B
 
attract prey
C
 
frighten predators
D
 
blend with its environment
71. What function is served by plant adaptations such
as stinging hairs, thorns, and briars?
A
 
Reproduction
B
 
Photosynthesis
C
 
Protection
D
 
Disease prevention
71. What function is served by plant adaptations such
as 
stinging hairs, thorns, and briars
?
A
 
Reproduction
B
 
Photosynthesis
C
 
Protection
D
 
Disease prevention
72. Coyotes have good eyesight, keen hearing, and an
excellent sense of smell.  How would these
characteristics BEST help a coyote survive in its
environment?  These characteristics would help—
A
 
insulate a coyote
B
 
a coyote move
C
 
the coyote hunt its prey
D
 
the coyote eat its food
72. Coyotes have 
good eyesight, keen hearing, and an
excellent sense of smell
.  How would these
characteristics BEST help a coyote survive in its
environment?  These characteristics would help—
A
 
insulate a coyote
B
 
a coyote move
C
 
the coyote hunt its prey
D
 
the coyote eat its food
73. A certain environment is warm and wet all year
long. Which of the following characteristics would be
BEST for an animal adapted to this environment?
A
 
 
Thin skin
B
 
 
Thick fur
C
 
 
Long tail
D
 
 
Layer of blubber
73. A certain environment is 
warm and wet all year
long
. Which of the following characteristics would be
BEST for an animal adapted to this environment?
A
 
 
Thin skin
B
 
 
Thick fur
C
 
 
Long tail
D
 
 
Layer of blubber
74. Why do large trees have a difficult time living in
the tundra?
A
 
A tundra is too hot for trees to grow large.
B
 
Animals that live in a tundra destroy most
 
vegetation.
C
 
Flooding occurs too often in a tundra for large trees
 
to grow.
D
 
The soil in a tundra is too frozen for large trees to
 
grow.
74. Why do 
large 
trees have a 
difficult time living
 in
the 
tundra
?
A
 
A tundra is too hot for trees to grow large.
B
 
Animals that live in a tundra destroy most
 
vegetation.
C
 
Flooding occurs too often in a tundra for large trees
 
to grow.
D
 
The soil in a tundra is too frozen for large trees to
 
grow.
75. A plant’s seeds would least likely be moved from
place to place by—
A
 
a river
B
 
the wind
C
 
an animal
D
 
another plant
75. A plant’s seeds would 
least likely 
be moved from
place to place by—
A
 
a river
B
 
the wind
C
 
an animal
D
 
another plant (doesn’t move!)
76. The eyes of the owl and the rabbit shown below give each animal a
different advantage.
The front-facing owl eyes allow the bird to correctly judge distance when
catching prey.  The side facing rabbit eyes allow the animal to detect the
motion of possible predators
.  
Which of the following functions is BEST
served by these adaptations?
A
 
Reproduction
B
 
Photosynthesis
C
 
Protection
D
 
Survival
76. The eyes of the owl and the rabbit shown below give each animal a
different advantage.
The front-facing owl eyes allow the bird to correctly judge distance when
catching prey
.  The side facing rabbit eyes allow the animal to 
detect the
motion of possible predators
.  Which of the following functions is BEST
served by these adaptations?
A
 
Reproduction
B
 
Photosynthesis
C
 
Protection
D
 
Survival
77. The picture below shows the foot of a certain bird.
In which of the following environments is this bird BEST adapted for
survival?
A
 
Desert
B
 
Freshwater lake
C
 
Meadow
D
 
Tropical rain forest
77. The picture below shows the foot of a certain bird.
In which of the following environments is this bird BEST adapted for
survival?
A
 
Desert
B
 
Freshwater lake
C
 
Meadow
D
 
Tropical rain forest
78. Dandelion plants have specialized seeds
that blow in the wind.  Dandelions rely on the
wind for which function listed below?
A
 
To grow longer roots
B
 
To attract insects
C
 
To grow bigger, better flowers
D
 
 
To spread their seed around
78. Dandelion plants have specialized seeds
that blow in the wind.  Dandelions 
rely on the
wind 
for which function listed below?
A
 
To grow longer roots
B
 
To attract insects
C
 
To grow bigger, better flowers
D
 
 
To spread their seed around
79. Which physical structure would best help a
bear to survive a winter in a very cold place?
A
 
Big ears
B
 
Black nose
C
 
Thick fur
D
 
 
Brown eyes
79. Which physical structure would best help a
bear to 
survive a winter in a very cold p
lace?
A
 
Big ears
B
 
Black nose
C
 
Thick fur
D
 
 
Brown eyes
80. During winter, the white fur of an arctic fox
blends in with the snow.  This adaptation is
called—
A
 
hibernation
B
 
migration
C
 
camouflage
D
 
 
movement
80. During winter, the white fur of an arctic fox
blends in with the snow.  
This adaptation is
called—
A
 
hibernation
B
 
migration
C
 
camouflage
D
 
 
movement
81. The ability of an organism to survive in its environment depends in part on how it
looks.  How does the physical appearance of the organisms pictured above help
them survive?  Their physical appearance helps them—
A
 
find a habitat
B
 
resist parasites
C
 
avoid predators
D
 
defend a territory
81. The ability of an organism to survive in its environment depends in part on how it
looks.  How does the 
physical appearance 
of the organisms pictured above help
them survive?  Their physical appearance helps them—
A
 
find a habitat
B
 
resist parasites
C
 
avoid predators
D
 
defend a territory
82. Which structure of a bird is correctly paired
with its function?
A
 
Claws for obtaining food
B
 
Wings for eliminating waste
C
 
Feathers for breathing
D
 
 
Eyes for growing
82. Which structure of a bird is 
correctly paired
with its function?
A
 
Claws for obtaining food
B
 
Wings for eliminating waste
C
 
Feathers for breathing
D
 
 
Eyes for growing
83. How do the spines of a cactus help it
survive?
A 
 
Spines help the cactus get moisture.
B 
 
Spines anchor the cactus in the ground.
C 
 
Spines protect the cactus from animals.
D 
 
Spines support the stems and branches of the
cactus
83. How do the 
spines of a cactus 
help it
survive?
A 
 
Spines help the cactus get moisture.
B 
 
Spines anchor the cactus in the ground.
C 
 
Spines protect the cactus from animals.
D 
 
Spines support the stems and branches of the
cactus
84. Ducks live near ponds and lakes. The shape of a duck’s foot
helps it swim and walk on muddy ground. Which factor is most
important in determining the shape of a baby duck’s foot?
A 
 
The shape of the parent ducks’ feet
B 
 
The temperature of the pond water
C 
 
The amount of mud in the bottom of the pond
D 
 
The amount of rain that fell before the duck was born
84. Ducks live near ponds and lakes. The shape of a duck’s foot
helps it swim and walk on muddy ground. Which factor is 
most
important in determining the shape of a baby duck’s foot
?
A 
 
The shape of the parent ducks’ feet
B 
 
The temperature of the pond water
C 
 
The amount of mud in the bottom of the pond
D 
 
The amount of rain that fell before the duck was born
85. How does the leaf of a plant help the plant survive in its
environment?
A
 
Leaves take nutrients from the soil.
B
 
Leaves produce food for the plant.
C
 
Leaves keep the plant from falling over.
D
 
Leaves take in water from the soil.
85. How does the 
leaf
 of a plant 
help
 the plant survive in its
environment?
A
 
Leaves take nutrients from the soil.
B
 
Leaves produce food for the plant.
C
 
Leaves keep the plant from falling over.
D
 
Leaves take in water from the soil.
86. Blue herons are birds which can often be seen in shallow
water such as marshes, ponds, and streams.  They feed on fish,
frogs, and other small animals.
Which of the following external characteristics helps a blue
heron find food?
A
 
Thick feathers
B
 
Long beak
C
 
Strong wings
D
 
Light colors
86. Blue herons are birds which can often be seen in shallow
water such as marshes, ponds, and streams.  They feed on fish,
frogs, and other small animals.
Which of the following 
external characteristics 
helps a blue
heron 
find food
?
A
 
Thick feathers
B
 
Long beak
C
 
Strong wings
D
 
Light colors
87. The seeds of a hemlock tree can be found in the cones made by the tree
as shown in the West Hemlock tree diagram below.
The diagram above shows the parts of a Western Hemlock tree.  This tree
and other plants need energy from the Sun in order to thrive and survive.
What form of energy does the tree get from the sun?
A 
 
Light energy
B
 
 
 Electrical energy
C
 
 
 Chemical energy
D 
 
 Mechanical energy
87. The seeds of a hemlock tree can be found in the cones made by the tree
as shown in the West Hemlock tree diagram below.
The diagram above shows the parts of a Western Hemlock tree.  This tree
and other plants need energy from the Sun in order to thrive and survive.
What form of energy does the tree 
get
 from the sun?
A 
 
Light energy
B
 
 
 Electrical energy
C
 
 
 Chemical energy (plant changes the sunlight into food – chemical)
D 
 
 Mechanical energy
88. If Western Hemlock trees grew faster, people could harvest
more wood to use.  Which question could help solve the
problem of making a tree grow faster?
A 
 
 What is the best soil for Western Hemlock trees?
B
 
 
 Which type of animals live in Western Hemlock trees?
C
 
 
 What time of year do Western Hemlock trees produce
 
cones?
D 
 
 How tall can a Western Hemlock tree grow?
88. If Western Hemlock trees grew faster, people could harvest
more wood to use.  Which question could 
help solve the
problem of making a tree 
grow faster
?
A 
 
 What is the best soil for Western Hemlock trees?
B
 
 
 Which type of animals live in Western Hemlock trees?
C
 
 
 What time of year do Western Hemlock trees produce
 
cones?
D 
 
 How tall can a Western Hemlock tree grow?
89. All animals need air to survive. An insect
gets air through tiny holes on the sides of its
body. A whale breathes through a blow hole.
What body part do fish use to breathe?
A 
 
Gills
B 
 
Skin
C 
 
Nose
D 
 
Mouth
89. All animals need air to survive. An insect
gets air through tiny holes on the sides of its
body. A whale breathes through a blow hole.
What body part do fish use to breathe?
A 
 
Gills
B 
 
Skin
C 
 
Nose
D 
 
Mouth
 
90. Which of the following animals is best
adapted to survive in this environment?
A. deer
B. camel
C. penguin
D. flamingo
 
90. Which of the following animals is best
adapted to survive 
in this environment?
A. deer
B. camel
C. penguin
D. flamingo
 
91. Which of the following animals is best
adapted to survive in this environment?
A. duck
B. snake
C. bear
D. moose
 
91. Which of the following animals is best
adapted to survive in this environment?
A. duck
B. snake (desert)
C. bear
D. moose
92. Animals have characteristics that help
them survive.  Which of these
characteristics would best help an animal
carry prey back to its nest?
A
 
Thick fur
B
 
Large eyes
C
 
Flat tail
D
 
Strong wings
92. Animals have characteristics that help
them survive.  Which of these
characteristics would best help an animal
carry prey back to its nest?
A
 
Thick fur
B
 
Large eyes
C
 
Flat tail
D
 
Strong wings
93. Blue whales have no teeth.  Instead, they have rows of
bristled strands that look like a broom, called baleen, which
filters their food.  Which of the following sea creatures are their
most common food?
A 
 
Seals and sharks
B 
 
Dolphins and porpoises
C 
 
Turtles and penguins
D 
 
Small fish and krill
93. Blue whales have no teeth.  Instead, they have rows of
bristled strands that look like a broom, called baleen, which
filters their food.  Which of the following sea creatures are 
their
most common food
?
A 
 
Seals and sharks
B 
 
Dolphins and porpoises
C 
 
Turtles and penguins
D 
 
Small fish and krill
94. Some insects, earthworms, and bacteria
break down dead material for food.  Organisms
that play this role in the food chain are
classified as—
A
 
producers
B
 
predators
C
 
decomposers
D
 
consumers
94. Some insects, earthworms, and bacteria
break down dead material for food
.  Organisms
that play this role in the food chain are
classified as—
A
 
producers
B
 
predators
C
 
decomposers
D
 
consumers
95. The appearances and behaviors that
organisms develop to help them meet their
needs are called—
A
 
instincts
B
 
skills
C
 
systems
D
 
adaptations
95. The appearances and behaviors that
organisms develop to help them meet their
needs are called—
A
 
instincts
B
 
skills
C
 
systems
D
 
adaptations
96. Which of the following BEST describes a
role of mushrooms in ecosystems?
A
 
Capturing energy from sunlight
B
 
Consuming living plant material
C
 
Taking energy from animal hosts
D
 
Breaking down dead plant material
96. Which of the following BEST describes a
role of 
mushrooms 
in ecosystems?
A
 
Capturing energy from sunlight
B
 
Consuming living plant material
C
 
Taking energy from animal hosts
D
 
Breaking down dead plant material
97. The pictures below show the change in the fur of an arctic hare from
summer to winter.
Which of the 
following statements BEST describes how this change helps
arctic hares?
A
 
It lowers their body temperatures.
B
 
It protects their eyes from sunlight.
C
 
It helps them move on slippery ice.
D
 
It makes them less visible to predators.
97. The pictures below show the change in the fur of an arctic hare from
summer to winter.
Which of the 
following statements BEST describes how 
this change helps
arctic hares
?
A
 
It lowers their body temperatures.
B
 
It protects their eyes from sunlight.
C
 
It helps them move on slippery ice.
D
 
It makes them less visible to predators.
98. Look at the pictures above.  How is the snail’s shell like the
porcupine’s quills? They are both used for—
A
 
digestion
B
 
protection
C
 
gathering food
D
 
breathing
98. Look at the pictures above.  How is the snail’s shell like the
porcupine’s quills? They are both used for—
A
 
digestion
B
 
protection
C
 
gathering food
D
 
breathing
99. The pads on a tree frog’s toes help the frog to—
A
 
catch insects
B
 
breathe better
C
 
blend in with its surroundings
D
 
climb trees
99. The 
pads on a tree frog’s 
toes help the frog to—
A
 
catch insects
B
 
breathe better
C
 
blend in with its surroundings
D
 
climb trees
100. A large animal like an elephant that eats
only plants MOST LIKELY has—
A
 
flat teeth
B
 
large ears
C
 
two tusks
D
 
thick skin
100. A large animal like an elephant that 
eats
only plants
 MOST LIKELY has—
A
 
flat teeth
B
 
large ears
C
 
two tusks
D
 
thick skin
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Explore how various species' physical adaptations, such as hooves and webs, aid in their survival. Understand the key roles of specific plant parts like stems and sunflower sections. Discover how specialized structures in animals like deer and polar bears contribute to their survival strategies.


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  1. Life Boot Camp 5.10A #2 Compare the structures and functions of different species that help them live and survive such as hooves on prairie animals or webbed feed in aquatic animals

  2. 51. Which numbered part of the sunflower is MAINLY responsible for photosynthesis? A Part 1 B Part 2 C Part 3 D Part 4

  3. 51. Which numbered part of the sunflower is MAINLY responsible for photosynthesis? A Part 1 B Part 2 C Part 3 D Part 4

  4. 52. A plants stem A supports the plant B produces seeds for the plant C anchors the plant in the soil D absorbs water and minerals from the soil

  5. 52. A plants stem A supports the plant (holds it up) B produces seeds for the plant C anchors the plant in the soil D absorbs water and minerals from the soil

  6. 53. Which bird food pictured below is BEST for swimming?

  7. 53. Which bird food pictured below is BEST for swimming?

  8. 54. What specialized structures do deer have that help them survive against predators? A Warm, brown hair B Fast running bodies C Good digestive systems D Large and intelligent brains

  9. 54. What specialized structures do deer have that help them survive against predators? A Warm, brown hair B Fast running bodies C Good digestive systems D Large and intelligent brains

  10. 55. Polar bears have thick, white hair. What advantage does that give the polar bears? A More people will hunt them for their fur. B They look bigger and impress their enemies. C They hunt better and can catch more food. D They stay warmer in very cold climates.

  11. 55. Polar bears have thick, white hair. What advantage does that give the polar bears? A More people will hunt them for their fur. B They look bigger and impress their enemies. C They hunt better and can catch more food. D They stay warmer in very cold climates.

  12. 56. Which of the following is NOT a way desert animals have adapted to survive in the desert? A Grow long, thick fur B Are active at night C Survive on little water D Live in burrows

  13. 56. Which of the following is NOT a way desert animals have adapted to survive in the desert? A Grow long, thick fur B Are active at night C Survive on little water D Live in burrows

  14. 57. Animals have adaptations that help them survive. One example of this is the hawk s strong talons. What primary purpose does this adaptation serve? A Protection from predators B Catching and eating food C Increased flying speed D Protection from prey

  15. 57. Animals have adaptations that help them survive. One example of this is the hawk s strong talons. What primary purpose does this adaptation serve? A Protection from predators B Catching and eating food C Increased flying speed D Protection from prey

  16. 58. Which of the following is an example of an adaptation of an animal s body that would improve its chances of survival in a specific environment? A An armadillo digging a hole under a fence B A chameleon changing colors to hide from a predator C Geese flying in a V formation D A gibbon swinging from branch to branch to escape a predator

  17. 58. Which of the following is an example of an adaptation of an animal s body that would improve its chances of survival in a specific environment? A An armadillo digging a hole under a fence B A chameleon changing colors to hide from a predator C Geese flying in a V formation D A gibbon swinging from branch to branch to escape a predator

  18. 59. Armadillos and coral snakes both live in Texas. When an armadillo is threatened, it curls its armored body up like a ball. A coral snake curls its tail into a tight spiral and holds it up when an enemy is near. Although these animals are very different, what is one way in which they are similar? A They both live in the water. B They have hard outer coverings. C They have ways to protect themselves. D They attack their enemies with poison.

  19. 59. Armadillos and coral snakes both live in Texas. When an armadillo is threatened, it curls its armored body up like a ball. A coral snake curls its tail into a tight spiral and holds it up when an enemy is near. Although these animals are very different, what is one way in which they are similar? A They both live in the water. B They have hard outer coverings. C They have ways to protect themselves. D They attack their enemies with poison.

  20. 60. The flowers that grow on the floor of a tropical forest have long stems. How does this adaptation help them survive in their environment? Long stems A protect them from getting too hot B make it easier for them to get sunlight C prevent them from being eaten D make it easier to pull them up

  21. 60. The flowers that grow on the floor of a tropical forest have long stems. How does this adaptation help them survive in their environment? Long stems A protect them from getting too hot B make it easier for them to get sunlight C prevent them from being eaten D make it easier to pull them up

  22. 61. Bears and foxes that live in warm areas usually have dark- colored fur. Polar bears and arctic foxes that live in cold places have white fur because it helps them A find prey B swim fast C find berries D hide from predators

  23. 61. Bears and foxes that live in warm areas usually have dark- colored fur. Polar bears and arctic foxes that live in cold places have white fur because it helps them A find prey B swim fast C find berries D hide from predators

  24. 62. Since all living things need nutrients (food) in order to survive, why can plants survive in a clear, closed system but animals cannot? A Plants are not living things, but animals are. B Plants can make their own food, but animals cannot. C Plants can live for long periods of time without nutrients. D Plants take in and give off oxygen, but animals do not.

  25. 62. Since all living things need nutrients (food) in order to survive, why can plants survive in a clear, closed system but animals cannot? A Plants are not living things, but animals are. B Plants can make their own food, but animals cannot. C Plants can live for long periods of time without nutrients. D Plants take in and give off oxygen, but animals do not.

  26. 63. A green tree frog lives in a forest. How does the frog's green color help it to survive? A By helping the frog find other frogs B By keeping the frog cool C By making the frog hard to see when sitting on leaves D By allowing the frog to make its own food

  27. 63. A green tree frog lives in a forest. How does the frog's green color help it to survive? A By helping the frog find other frogs B By keeping the frog cool C By making the frog hard to see when sitting on leaves D By allowing the frog to make its own food

  28. 64. What advantage does the walking stick pictured above have for survival in its environment? A It lives on leaves and tree branches. B It blends in with its environment. C It eats the leaves from plants. D It sheds its skin every year.

  29. 64. What advantage does the walking stick pictured above have for survival in its environment? A It lives on leaves and tree branches. B It blends in with its environment. C It eats the leaves from plants. D It sheds its skin every year.

  30. 65. The cactus plant shown above lives in a desert environment. What characteristic of this plant could be found in many other desert plants? A B C D A deep root system for gathering water Lush growth that serves to trap water if it rains Broad leaves that protect the plants from the hot sun Leaves and stems that are adapted to conserve water

  31. 65. The cactus plant shown above lives in a desert environment. What characteristic of this plant could be found in many other desert plants? A B C D A deep root system for gathering water Lush growth that serves to trap water if it rains Broad leaves that protect the plants from the hot sun Leaves and stems that are adapted to conserve water

  32. 66. Animals have adaptations that help them survive in their environment. One example of this is the giraffe s long neck. What primary purpose does this adaptation serve? A Protection from heat B Gathering of food C Protection from predators D Increased speed

  33. 66. Animals have adaptations that help them survive in their environment. One example of this is the giraffe s long neck. What primary purpose does this adaptation serve? A Protection from heat B Gathering of food C Protection from predators D Increased speed

  34. honey bee hover fly 67. A hover fly looks like a honey bee. Which statement BEST explains how this adaptation helps the hover fly survive? Looking like a honey bee Akeeps other animals away from the hover fly s food Bkeeps other animals away from the hover fly s home C allows the hover fly to blend in with its environment D keeps some predators from trying to eat the hover fly

  35. honey bee hover fly 67. A hover fly looks like a honey bee. Which statement BEST explains how this adaptation helps the hover fly survive? Looking like a honey bee Akeeps other animals away from the hover fly s food Bkeeps other animals away from the hover fly s home C allows the hover fly to blend in with its environment D keeps some predators from trying to eat the hover fly

  36. 68. What is the primary function of the large leaves found on seedlings growing in a forest? A To provide shade for the root systems B To get rid of excess water that is entering through the roots C To allow for leaf damage by insects D To gather as much light as possible for photosynthesis

  37. 68. What is the primary function of the large leaves found on seedlings growing in a forest? A To provide shade for the root systems B To get rid of excess water that is entering through the roots C To allow for leaf damage by insects D To gather as much light as possible for photosynthesis

  38. 69. Barnacles and corals are two types of animals that live in the ocean. Both animals build a hard layer of calcium around their soft body parts. What is the MOST likely reason that they build these layers? A Prepare them for reproduction B Protect them from predators C Help them capture food D Keep them from drying out

  39. 69. Barnacles and corals are two types of animals that live in the ocean. Both animals build a hard layer of calcium around their soft body parts. What is the MOST likely reason that they build these layers? A Prepare them for reproduction B Protect them from predators C Help them capture food D Keep them from drying out

  40. 70. How would looking like a poisonous dart frog help a non-poisonous frog survive? This adaptation helps the frog A find shelter B attract prey C frighten predators D blend with its environment

  41. 70. How would looking like a poisonous dart frog help a non-poisonous frog survive? This adaptation helps the frog A find shelter B attract prey C frighten predators D blend with its environment

  42. 71. What function is served by plant adaptations such as stinging hairs, thorns, and briars? A Reproduction B Photosynthesis C Protection D Disease prevention

  43. 71. What function is served by plant adaptations such as stinging hairs, thorns, and briars? A Reproduction B Photosynthesis C Protection D Disease prevention

  44. 72. Coyotes have good eyesight, keen hearing, and an excellent sense of smell. How would these characteristics BEST help a coyote survive in its environment? These characteristics would help A insulate a coyote B a coyote move C the coyote hunt its prey D the coyote eat its food

  45. 72. Coyotes have good eyesight, keen hearing, and an excellent sense of smell. How would these characteristics BEST help a coyote survive in its environment? These characteristics would help A insulate a coyote B a coyote move C the coyote hunt its prey D the coyote eat its food

  46. 73. A certain environment is warm and wet all year long. Which of the following characteristics would be BEST for an animal adapted to this environment? A Thin skin B Thick fur C Long tail D Layer of blubber

  47. 73. A certain environment is warm and wet all year long. Which of the following characteristics would be BEST for an animal adapted to this environment? A Thin skin B Thick fur C Long tail D Layer of blubber

  48. 74. Why do large trees have a difficult time living in the tundra? A A tundra is too hot for trees to grow large. B Animals that live in a tundra destroy most vegetation. C Flooding occurs too often in a tundra for large trees to grow. D The soil in a tundra is too frozen for large trees to grow.

  49. 74. Why do large trees have a difficult time living in the tundra? A A tundra is too hot for trees to grow large. B Animals that live in a tundra destroy most vegetation. C Flooding occurs too often in a tundra for large trees to grow. D The soil in a tundra is too frozen for large trees to grow.

  50. 75. A plants seeds would least likely be moved from place to place by A a river B the wind C an animal D another plant

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