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5th grade sci. Ch 8
Term | Definition |
---|---|
Community | the group of all populations in an area |
Ecosystem | all the living and nonliving things in an area and their interactions. |
Predator | a consumer that hunts and eats another animal |
Habitat | a place that provides all the things an organism needs to live |
Prey | any animal that is hunted by others for food |
Population | a group of organisms of one species that live in an area at the same time |
Competition | the struggle among organisms for the same limited resources |
Food chain | a series of steps by which energy moves from one type of living thing to another |
Producer | organism that makes its own food for energy |
Nitrogen Cycle | repeated movement of nitrogen through the environment in different forms |
Food web | a diagram that combines many food chains into one picture |
Consumer | organism that cannot make its own food |
Carbon cycle | repeated movement of carbon through the environment in different forms |
Environment | all of the conditions surrounding an organism |
Decomposer | organism that gets its energy by breaking down wastes and dead organisms |