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Science 4th Grade
Unit B Ch 1 LS 1,2
Question | Answer |
---|---|
Ecosystems | groups of living things and the enviornment they live in |
Population | a group of the same species living in the same place at the same time |
Community | all the populations that live in the same area |
Habitat | an enviornment that meets the needs of an organism |
Niche | the role or part played by an organism in its habitat |
Producers | a living thing such as a plant, that makes its own food |
Consumers | a living thing that eats other living things for energy |
Decomposers | a living thing that feeds on the wastes of plants and animals or on their remains after they die |
Energy pyramid | a diagram that shows how much food energy is passed from one organism to one another along a food chain |
Food web | a diagram that shows how food chains connect and overlap |