| A | B |
| all the living and nonliving things in an environment and how they interact | ecosystem |
| surroundings | environment |
| a place where an animal or plant lives | habitat |
| a living thing that uses sunlight to make sugar | producer |
| a living thing that gets energy by eating plants and other animals | consumer |
| a consumer that eats plants | herbivore |
| a consumer that eats other consumers | carnivore |
| a consumer that eats both plants and other consumers | omnivore |
| an animal that eats dead animals | scavenger |
| a consumer that puts materials from dead plants and animals back into soil, air, and water | decomposer |
| the flow of energy through a community | food chain |
| an animal that hunts and kills other animals for food | predator |
| the animals that predators hunt | prey |
| all the food chains in a community | food web |
| clearing of a large area of trees | deforestation |
| the first link in any food chain | sun |
| rocks, soil, water, sunlight, air | nonliving things |
| animals, plants, bacteria | living things |