| A | B |
| population | all the individuals of the same kind living in the same environment |
| predator | a consumer that eats prey |
| prey | consumers that are eaten by predators |
| producer | a living thing, such as a plant that can make its own food |
| abiotic | of the nonliving parts of an ecosystem |
| food web | a group of food chains that overlap |
| habitat | an environment that meets the needs of an organism |
| herbivore | an animal that eats only plants, or producers |
| niche | the role of an organism in its habitat |
| omnivore | an animal that eats both plants and other animals |