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Ch 4 Science
Ecosystems
Term | Definition |
---|---|
producer | plants that make their own food |
ecosystem | an environment where all the living and nonliving things interact |
consumer | living things that eat other living things |
habitat | area or place where organisms live in an ecosystem |
herbivore | an animal that eats plants |
population | all the members of one species that live within an area of an ecosystem |
fossil | remains or mark of an animal or plant that lived long ago |
food chain | the transfer of energy from one organism to another by eating and being eaten. |
carnivore | an animal that eats meat |
extinct | no longer existing as a species |
food web | system of overlapping food chains in which the flow of energy branches out in many different directions |
omnivore | animal that eats smaller animals and plants |
paleontologist | a scientist who studies fossils |
competition | occurs when two or more living things need the same resources in order to survive |
decomposer | organism that breaks down plant and animal waste and remains |