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Ecology

TermDefinition
Ecology The scientific study of interactions between organisms and their environment
Biotic Factors The living components of a natural environment.
Abiotic Factors Nonliving (has not ever been alive and never could be alive)
Species A group of organisms so similar to one another that they can breed and produce fertile offspring .
Ecosystem All of the biotic and abiotic factors living together and interacting in a specified area .
Limiting Factors Any biotic or abiotic factor that acts in some way to limit the number of individuals that survive and reproduce in a population
Mutualism Where both organisms benefit.
Commensalism Where one organism benefits and other is NOT helped or harmed.
Predation Where one benefits and one is killed and eaten.
Decomposer Causes decay (rot) by breaking down complex molecules into simpler molecules.
Biosphere The thin volume of Earth and its atmosphere that supports life; the broadest most inclusive level of organization.
Symbiosis Living together in the same community, interacting with each other over a long time period.
Tolerance The ability of living organisms to withstand or tolerate little unfavorable changes in the environment.
Habitat The physical area in which an organism lives.
Niche Role, position, or job of an organism in its environment.
Carrying Capacity The max number of living organisms that a region can support without environmental or population harm.
Trophic Level Each step in a food chain or web.
Aerobic This type of respiration converts glucose into energy using oxygen.
Anaerobic This type of respiration generates energy (ATP) without using oxygen.
Biodiversity The variety of all living things and their interactions.
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