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01 Ecology Terms

Vocabulary for Ecology unit in Advanced Life Science; Corner Lake Middle School

abiotic An environmental factor that is not associated with the activities of living organisms
biogeochemical cycle
biotic A living thing; anything that can carry out life processes independently
carbon cycle The movement of carbon from the nonliving environment into living things and back.
commensalism A relationship between two organisms in which one organism benefits and the other is unaffected.
competition Ecological relationship in which two or more organisms depend on the same limited source.
consumer An organism that eats other organisms or organic matter.
decomposer An organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients.
ecology The study of interactions of living organisms with one another and their environment.
ecosystem A community of organisms and their abiotic, or nonliving environment.
energy pyramid A triangular diagram that shows an ecosystem’s loss of energy, which results as energy passes through the ecosystem’s food chain; each row in the pyramid represent a trophic feeding level in an ecosystem, and the area of a row represent the energy that i
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 environment.
limiting factor An environmental factor that tends to limit population size.
mutualism A relationship between two species in which both species benefit.
parasitism A relationship between two species in which one species, the parasite, benefits from the other species, the host, which is harmed.
primary consumer
secondary consumer
tertiary consumer
trophic level
water cycle
organism A living thing; anything that can carry out life processes independently
Created by: 4804063723



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