| A | B |
| biotic | living or once living parts of an ecosystem |
| abiotic | non-living parts of an ecosystem |
| consumer | gets energy from other living things |
| producer | gets energy from the sun |
| prey | what is eaten |
| predator | what eats other living things |
| food chain | shows how energy flows in an ecosystem |
| food web | combines several food chains to show energy flow |
| decomposer | eats the remains of once living things |
| herbivore | eats only plants/producers |
| carnivore | eats only meat/other animals |
| omnivore | eats both plants and animals |