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Science Vocabulary
Section 1 - 3
Term | Definition |
---|---|
ecology | the study of the interactions of living organisms with one another and with their environment |
biotic | describes living factors in the environment |
abiotic | describes the nonliving part of the environment, including water, rocks, light, and temperature |
population | a group of organisms of the same species that live in a specific geographical area |
community | all of the populations of species that live in the same habitat and interact with each other |
ecosystem | a community of organisms and their abiotic, or nonliving, environment |
biosphere | the part of Earth where life exists; includes all of the living organisms on Earth |
herbivore | an organism that eats only plants |
carnivore | an organism that eats animals |
omnivore | an organism that eats both plants and animals |
food chain | the pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms |
food web | a diagram that shows the feeding relationships between organisms in an ecosystem |
energy pyramid | a triangular diagram that shows an ecosystem's loss of energy, which results as energy passes through the ecosystem's food chain |
carrying capacity | the largest population that an environment can support at any given time |
prey | an organism that is killed and eaten by another organism |
predator | an organism that kills and eats all or part of another organism |
symbiosis | a relationship in which two different organisms live in close association with each other |
mutualism | a relationship between two species in which both species benefit |