| A | B |
| producer/autotroph | organism that can make its own food |
| consumer/heterotroph | organism that must consume other organisms for food |
| chemosynthesis | process of producing carbohydrates from inorganic compounds, without using light |
| food chain | sequence that links species by their feeding relationships |
| food web | model that shows the complex network of feeding relationships |
| herbivore | organism that eats plants (primary consumer) |
| carnivore | organism that eats animals |
| omnivore | organism that eats both plants & animals |
| detritivore | organism that eats dead organic matter |
| decomposer | detritivores that break down organic matter into simpler compounds |
| specialist | organism with only one primary food source |
| generalist | organism with a varied diet |
| trophic levels | levels in a food chain or energy pyramid |
| secondary consumer | eats primary consumers |
| tertiary consumer | eats secondary consumers |
| quaternary consumer | eats tertiary consumers |
| 10% Law | Only 10% of the energy available in one trophic level gets passed to the next level. The other 90% is lost as heat. |