Unit 3 Week 1

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Animals

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A diverse group of living organisms that consume organic material, breathe oxygen, are able to move, and reproduce sexually.

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Archaea

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A domain of single-celled microorganisms that are prokaryotes, distinct from bacteria and known for living in extreme environments.

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Autotroph

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An organism that produces complex organic compounds from simple substances present in its surroundings, generally using energy from light or inorganic chemical reactions.

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Bacteria

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A large domain of prokaryotic microorganisms, typically a few micrometers in length, which have a wide range of shapes and are found in every habitat on Earth.

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Eukarya

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One of the three domains of life, consisting of organisms with complex cells, or a single cell with a complex structure, including a nucleus.

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Eukaryotic

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Referring to cells that have a nucleus enclosed within membranes, unlike prokaryotes, which have no membrane-bound organelles.