| A | B |
|---|
| regeneration | a whole animal develops from just a part of the original animal |
| external fertilization | sperm cells and egg cells come together outside a female's body |
| internal fertilization | sperm cells and egg cells come together inside the female's body |
| sexual reproduction | a form of reproduction which requires two cell - a male and a female |
| asexual reproduction | a form of reproduction that requires only one cell |
| molt | shed an outer cover |
| metamorphosis | when animals change from one form to a completely different form during their life cycle |
| reproduction | the process that a living thing uses to produce more of its own kind |
| life cycle | all the stages in a living thing's development from one generation to the next |
| life span | the length of time an animal can live under the best conditions |
| fission | a form of asexual reproduction where an organism divides into two equal daughter cells |
| budding | a form of asexual reproduction where a tiny bump or bud grows off of a parent organism until it can live on its own; then it breaks off of the parent |
| spore | a reproductive cell that will grow into a new organism |
| larva | the second of four stages in the life cycle of some insects; a worm like stage |
| pupa | the third stage in the life cycle of some insects; usually covers itself in a cocoon |
