| A | B |
|---|
| biotic | living things; tree, lizard |
| abiotic | non-living things; rocks, air, water |
| food web | many overlapping food chains |
| carbon/oxygen cycle | recycling of carbon and oxygen between plants/animals |
| nitrogen cycle | the recycling of nitrogen from air into soil and back to the air |
| water cycle | process of how water is recycled |
| responses | reaction caused by a stimulus; action/doing |
| stimuli | anything that causes a reaction; hunger, light |
| habitat | place where an organism lives; nest |
| niche | role or job in an ecosytem; producer or consumer |
| photosynthesis | food making process in plants |
| decay of biomass | how organic material break down; trash, compost |
| levels of organization | how organisms are organized |
