| A | B |
|---|
| ecosystem | biotic & abiotic factors in an environment |
| biotic | living organism |
| abiotic | nonliving thing |
| species | one kind of organism |
| photosynthesis | plants make sugar from sunlight and CO2 |
| chlorophyll | green material in plants |
| producer | organism that makes its own food |
| consumer | organism that eats other organisms |
| decomposer | organism that eats decaying material |
| herbivore | consumer that eats plants |
| carnivore | consumer that eats meat |
| onmivore | consumer that eats plants and meat |
| predator | animal that eats another |
| prey | animal that is eaten |
| food chain | shows the path of energy from the sun through living things |
| food pyramid | shows the amount of food needed at each level of food chain |
| ecology | study of living things and their environment |
| respiration | living things use O2 to release energy in food |
| energy | needed by all living things to carry out the activities of life |
| parasitism | relationship-one hurts the other |
| mutualism | relationship-both are helped |
| commensalism | relationship-one is helped, other unaffected |
| carbon dioxide | plants need to make food |
| oxygen | plants give off as waste |
