Homeostasis, derived from Greek meaning "standing still", is crucial for maintaining balance in living organisms. It involves regulating internal variables to prevent disease or death. Ancient Greeks emphasized the importance of harmony and equilibrium in life. Claude Bernard and Walter B. Cannon fu

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Explore the levels of organization in living organisms, from atoms to cells, and the differences between unicellular and multicellular organisms. Learn about prokaryotes, eukaryotes, cell differentiation, chromosomes, and the importance of stem cells in development and repair.

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Journey into the microscopic world of unicellular organisms with a focus on Amoeba and Euglena. Discover the unique structures and behaviors of these tiny creatures, from Amoeba's adaptable pseudopod movements to Euglena's photosynthesis capabilities. Uncover how these organisms survive, feed, and r

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Living things share common characteristics like being made of cells, responding to the environment, and reproducing. Macromolecules in cells help them function, and unicellular and multicellular organisms differ in structure. The levels of organization in multicellular organisms are explained, along

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Marchantia, a thalloid bryophyte, exhibits dichotomous branching and a gametophyte-dominant life cycle. It is dioecious with distinct male and female thalli bearing antheridia and archegonia. With around 65 global species, including common ones like M. polymorpha, it thrives in moist, sandy habitats

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Synchytrium is an obligate parasite causing black wart disease in potatoes. It affects underground parts, leading to cauliflower-like outgrowths on tubers. The fungus exhibits a unicellular structure and releases uniflagellate zoospores for asexual reproduction. Germination of prosorus results in th

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Viruses are the smallest unicellular organisms that are obligate intracellular. They lack cellular organization like bacteria, and their multiplication is complex. Viruses have either DNA or RNA and are classified based on their nucleic acid. Their structure includes nucleic acid and a capsid compos

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Unicellular and multicellular organisms differ in structure, division of labor, specialization, exposure to environment, response to injury, size limitations, lifespan, and ability to divide. Unicellular organisms have a single-cell body, limited operational efficiency, and face challenges in size a

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Protists are eukaryotes that cannot be classified as plants, animals, or fungi. They thrive in moist environments and showcase a remarkable diversity within the Kingdom Protista. From animal-like protozoa to plant-like autotrophs and fungus-like heterotrophs, this kingdom contains a wide array of un

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Phylum Protozoa comprises unicellular, microscopic, eukaryotic organisms found mostly in aquatic habitats. They exhibit diverse locomotory structures such as cilia, flagella, or pseudopodia. These protists may possess a cellulose cell wall and various membrane-bound organelles like mitochondria and

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Discover the fascinating world of unicellular organisms through examples like Amoeba and Paramecium. Compare the characteristics and functions of unicellular and multicellular organisms, explore their feeding, movement, waste removal, and reproduction processes, and delve into the diversity of cell

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Protozoa are unicellular heterotrophic organisms that obtain nutrition by ingesting other organisms or dead organic material. They can be parasitic and are classified based on their modes of locomotion. Common groups include amoebas, flagellates, sporozoans, and ciliates. Protozoa are further catego

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Explore the basic differences between unicellular and multicellular organisms, including the distinctions between prokaryotes and eukaryotes. Unicellular organisms, such as bacteria and amoeba, consist of a single cell and are often microscopic. Examples of both prokaryotic and eukaryotic unicellula

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Protists are diverse unicellular organisms that can be classified based on their nutrition and movement methods. They include protozoans, algae, and heterotrophs like molds, each playing unique roles in ecosystems. From Didinium to multicellular algae, explore the fascinating world of these microsco

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Living organisms are classified into five kingdoms, each further divided into smaller groups called phyla, classes, orders, and genus. The five kingdoms are Monera, Fungi, Protista, Plantae, and Animalia. Animals are categorized into invertebrates and vertebrates, with significant agricultural impor

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Fungi, diverse eukaryotic organisms, exhibit various characteristics such as heterotrophic nature, distinct cell wall composition, and different modes of reproduction. Mycology, the study of fungi, delves into their classification and functions. Fungal cells may be unicellular or filamentous, with m

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Algae, diatoms, dinoflagellates, euglenoids, and red algae are diverse plant-like protists crucial for Earth's ecosystems. They range from unicellular to multicellular forms, contributing significantly to oxygen production and food chains. While some like red algae thrive in deep ocean waters, other

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Algae are chlorophyllous thallophytes that thrive in aquatic environments, producing their own food and oxygen through photosynthesis. They are categorized based on habitat as aquatic, terrestrial, aerophytes, cryophytes, and thermophytes. The three main classifications of algae are Chlorophyceae (g

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Intestinal helminths, including nematodes, are classified into unicellular and multicellular parasites. Nematodes are elongated worms found in the human body, causing common infections such as Enterobius vermicularis. The pathology of Enterobius infections often presents with pruritus ani. Learn abo

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This resource focuses on the cell cycle in the context of growth, development, and proliferation. It covers the significance of cell division, similarities in unicellular and multicellular organisms, the importance of CDK-mediated phosphorylation, and more. Students will learn to create schematic de

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Mastigomycota Subdivision Haplomastigomycotina comprises diverse classes, including Chytridiomycetes, classified based on flagella characteristics. Chytridiomycetes are motile in aquatic habitats, with some exhibiting parasitic behavior. The subclass Chytridiales includes unicellular organisms with

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Apicomplexa, a group of unicellular, spore-forming parasites, exhibit a complex life cycle involving sexual and asexual stages. Coccidia, a type of Apicomplexan parasite, cause diseases like coccidiosis in humans and animals. The disease spreads through contact with infected feces or tissue, leading

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Microbes are vital single-celled organisms that exist everywhere, some beneficial while others harmful. Fungi, a crucial group of microbes, can be unicellular or multicellular, with diverse roles in nature and human activities. This article delves into the characteristics and classification of fungi

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