| A | B |
| hatch | to come out of an egg |
| tadpole | an early form of a frog |
| gills | body part used for breathing in water |
| lungs | two body parts used for breathing |
| larva | an early form of some animals that looks like a worm |
| caterpillar | a butterfly larva |
| pupa | what a caterpillar becomes before it changes into an adult |
| offspring | the young produced by animals or plants |
| inherit | to receive traits from one's parents |
| trait | a way that a living thing looks or acts |