| A | B |
|---|
| organism | any living thing that is made of cells, uses energy, reproduces, responds and grows and develops |
| cell | smallest unit of an organism that can carry on life functions |
| homeostasis | ability of an organism to keep proper internal conditions no matter what external stimuli are occurring |
| spontaneous generation | idea that living things come from nonliving things |
| biogenesis | theory that living things come only from other living things |
| phylogeny | evolutionary history of an organism; used today to group organisms into six kingdoms |
| kingdom | first and largest category used to classify organisms |
| binomial nomenclature | two-word naming system that gives all organisms their scientific name |
| genus | first word of the two-word scientific name used to identify a group of similar species |
