Ecology and Biodiversity
DO NOW:
What is the energy used to power all cellular activities?
What is selective breeding?
What are the building blocks of proteins?
Name a female hormone:
What is the purpose of the placenta?
Why is the embryo at the greatest risk during the first 8 weeks of life?
What is meiosis?
TAG CTA <-- Translate this into mRNA:
Name a feedback mechanism that occurs in the human body:
What color does starch indicator turn in the presence of starch?
Ecology:
•
Study of both
biotic
and
abiotic
factors interacting
–
BIOtic-
living
- plants, animals, foods, mates
–
Abiotic-
Nonliving
- sunlight, soil, pH, temperature, water
Ecology:
•
Study of both
biotic
and
abiotic
factors interacting
–
BIOtic-
living
- plants, animals, foods, mates
–
Abiotic-
Nonliving
- sunlight, soil, pH, temperature, water
•
The growth and survival of organisms
depends
on
the conditions of the
environment
•
If an organism is not
adapted
for an environment, it
will not be able to compete for
resources.
•
The carrying capacity of an ecosystem is the
maximum
number
of species that can be
supported
.
•
The more resources there are, the higher the carrying
capacity
•
The less resources there are, the lower the carrying
capacity
•
The carrying capacity
can change
from year to year
Biodiversity
Biodiversity
•
Because of evolution, there are many different
types of life
.
•
Biodiversity is the amount of
different species
in an
area
Biodiversity
•
Farms have
NO biodiversity
, because they focus on
1 or 2 species.
•
Rainforests have a lot of biodiversity, because there
are so many
different types of life
living there.
***Why is biodiversity important?***
•
Biodiversity increases the
STABILITY
of an
ecosystem
•
The more biodiversity there is, the more
genetic
diversity
there is.
–
Genetic diversity increases the chances of
survival
!!
•
Biodiversity may lead to
discoveries in agriculture
and medicine
!
Ecological Succession
•
Biodiversity does not happen overnight.
•
Stable ecosystems are built
over time
through
ecological succession.
•
A stable ecosystem cab be destroyed by
natural
disasters
(fire, volcano) or by human activity
(
deforestation
)
•
Each step of ecological succession
modifies
or
changes the environment to make it more
suitable
for other organisms to move in.
*Less Stable
*More Stable
*Less Biodiversity
*More biodiversity
Roles in the ecosystem
•
Heterotroph-
•
Autotroph-
•
Producer-
•
Consumer-
•
Decomposer-
•
Predator-
•
Prey-
•
Parasite-
Roles in the ecosystem
•
Heterotroph-
relies on others for food
•
Autotroph-
makes its own food
•
Producer-
makes its own food
•
Consumer-
eats food
•
Decomposer-
breaks down dead organisms and
recycles nutrients/compounds back into the soil
•
Predator-
hunter
•
Prey-
hunted
•
Parasite-
causes harm to host
Energy in the Ecosystem
•
All energy starts with the
sun
, but only producers
are able to use this energy
–
Photosynthesis
•
Energy flows in
one direction
only
•
Chemical energy
is passed in a food chain
•
Organisms use chemical energy to make
ATP
–
Cellular Respiration
•
ATP is
never
transferred!!!!
•
ATP energy is used and
LOST
to the environment
as heat
!
Ecology explores the dynamic interactions between living (biotic) and non-living (abiotic) factors in ecosystems. It delves into selective breeding, protein structure, hormones, placenta function, and the vulnerability of embryos during early development. Meiosis, mRNA translation, feedback mechanisms, and starch indicators are also discussed. The images highlight the importance of biodiversity for ecosystem stability, genetic diversity, and potential agricultural and medical breakthroughs.
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Presentation Transcript
DO NOW: What is the energy used to power all cellular activities? What is selective breeding? What are the building blocks of proteins? Name a female hormone: What is the purpose of the placenta? Why is the embryo at the greatest risk during the first 8 weeks of life? What is meiosis? TAG CTA <-- Translate this into mRNA: Name a feedback mechanism that occurs in the human body: What color does starch indicator turn in the presence of starch?
Ecology: Study of both biotic and abiotic factors interacting BIOtic- living- plants, animals, foods, mates Abiotic- Nonliving- sunlight, soil, pH, temperature, water
Ecology: Study of both biotic and abiotic factors interacting BIOtic- living- plants, animals, foods, mates Abiotic- Nonliving- sunlight, soil, pH, temperature, water The growth and survival of organisms depends on the conditions of the environment If an organism is not adapted for an environment, it will not be able to compete for resources.
The carrying capacity of an ecosystem is the maximum number of species that can be supported. The more resources there are, the higher the carrying capacity The less resources there are, the lower the carrying capacity The carrying capacity can change from year to year
Biodiversity Because of evolution, there are many different types of life. Biodiversity is the amount of different species in an area
Biodiversity Farms have NO biodiversity, because they focus on 1 or 2 species. Rainforests have a lot of biodiversity, because there are so many different types of life living there.
***Why is biodiversity important?*** Biodiversity increases the STABILITY of an ecosystem The more biodiversity there is, the more genetic diversity there is. Genetic diversity increases the chances of survival!! Biodiversity may lead to discoveries in agriculture and medicine!
Ecological Succession Biodiversity does not happen overnight. Stable ecosystems are built over time through ecological succession. A stable ecosystem cab be destroyed by natural disasters (fire, volcano) or by human activity (deforestation)
Each step of ecological succession modifies or changes the environment to make it more suitable for other organisms to move in. http://www.biorewind.com/wp-content/uploads/2012/04/ecological-succession-e1335917843565.png *Less Stable *Less Biodiversity *More Stable *More biodiversity
Roles in the ecosystem Heterotroph- Autotroph- Producer- Consumer- Decomposer- Predator- Prey- Parasite-
Roles in the ecosystem Heterotroph- relies on others for food Autotroph- makes its own food Producer- makes its own food Consumer- eats food Decomposer- breaks down dead organisms and recycles nutrients/compounds back into the soil Predator- hunter Prey- hunted Parasite- causes harm to host
Energy in the Ecosystem All energy starts with the sun, but only producers are able to use this energy Photosynthesis Energy flows in one direction only Chemical energy is passed in a food chain
Organisms use chemical energy to make ATP Cellular Respiration ATP is never transferred!!!! ATP energy is used and LOST to the environment as heat!
