| A | B |
| Organism | a living thing |
| Cell | building blocks of structure in all living thinga |
| Stimulus | change in a living things surroundings |
| Response | action or behavior to change |
| Development | when a living thing grows and gets larger |
| Autotroph | living things that make their own food (plants0 |
| Heterotroph | living things that cannot make their own food ( animals ) |
| Reproduce | to make more of |