What are the levels of organization in multicellular organisms?

Answer 1

From smallest to largest (within the organism): Cell, Tissue, Organ, Organ System, Organism.

Groups of similar cells working together for a function are tissues. Similar tissues working together to perform a function make an organ. Similar organs with a common purpose are called an organ system. Multiple organ systems make up the organism.

Below the cellular level, there are organelles, molecules, atoms, and subatomic particles.

Above the organism, there are populations (all of the organisms of a species in an area), communities (all species in an area), ecosystems (the community and environment), and the biosphere (the Earth).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.