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Bio - Ecology Unit Set #1
Intro to Ecology
Terms in this set (20)
The nonlving aspects of the environment.
The total mass of organisms at a trophic level.
The living aspects of the environment.
Organisms consume other animals; these animals do not commonly consume plants.
Organisms use energy from chemical compounds to make food; include bacteria and archaea.
competitive exclusion principle
Two different species cannot occupy the same niche in the same place for very long.
Organisms that break down the remains and other wastes and release simple organic molecules back to the environment.
Organisms that consume organic debris.
Waste or debris of any kind; organic matter produced by the decomposition of organisms.
The study of how living things interact with each other and with the environment.
A single pathway through which energy and matter flow through and ecosystem.
The multiple pathways through which energy and matter flow through an ecosystem; many intersecting food chains.
The physical environment in which a species lives and to which it is adapted.
Organisms that consume producers such as plant or algae.
Refers to the role of a species in its ecosystem; includes the the food the organism eats and how the food is obtained.
Organisms that consume both plants and animals.
Organisms use energy from sunlight to make food by photosynthesis; these include plants, algae, and certain bacteria.
Organisms that consume organic matter that if left over after other decomposers do their work; the final contributors to decomposition.
Organisms that consume the soft tissue of dead animals.
The feeding positions in a food chain or web.
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