Glossary

1.eukaryotes ----A single-celled or multicellular organism whose cells contain a distinct membrane-bound nucleus.

2.molecules----The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms; a group of like or different atoms held together by chemical forces.

3.binary fission----fission into two organisms approximately equal in size.

4.Mitochondria----an organelle in the cytoplasm of cells that functions in energy production.

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