| A | B |
|---|
| producer | an organism that can make its own food |
| consumer | an organism that obtains energy by feeding on other organisms |
| decomposer | an organixm that breaks down large molecules from dead organisms into small molecules and returns important materials to the environment |
| photosynthesis | the process by which plants and some other organisms capture light energy and use it to make food from carbon dioxide and water |
| chloroplast | a structure in the cells of plants and some other organisms that captures energy from sunlight and uses it to produce food |
| respiration | the process by which cells break down simple food molecules to release energy they contain |
| herbivore | an aminal that eats only plants |
| carnivore | an animal that eats only other animals |
| omnivore | an animal that eats both plants and animals |
| scavenger | a carnivore that feeds on the bodies of dead organisms |
| ecosystem | all the living and nonliving things that interact in an area |
| biotic factors | a living part of an ecosystem |
| abiotic factors | a nonliving part of an ecosystem |
| food chain | a series of events in which one organism eats another and obtains energy |
| food web | the pattern of overlapping food chains in an ecosystem |
| energy pyramid | a diagram that shows the amount of energy that moves from one feeding level to another in a food web |
| habitat | the place where an organism lives and that provides the things the organism needs |
| chlorophyll | a green pigment found in the chloroplasts of plants, algae, and some bacteria |
