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Unit 7B


Biodiversity Describes the variety of life across all levels of ecological organization.
Genetic Biodiversity Variation in genes that exists within a species.
Species Biodiversity The number of species and abundance of each species that live in a particular location.
Ecological Biodiversity The variety of ways that species interact with each other and their environment.
Ecosystem All of the living populations in an area along with the nonliving parts of that environment.
Sustainability Ability of an ecosystem to remain stable in regular and catastrophic conditions.
Food Chain A single pathway in which energy and nutrients are passed from one living organism to another. Energy is used up as it moves and the arrow represents energy being transferred.
Food Web A network of food chains by which energy and nutrients are passed on from one living organism to another with multiple pathways. The arrows represent energy being transferred.
Natural Selection The process whereby organisms better adapted to their environment tend to survive and produce more offspring over long periods of time.
Pollution The presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects.
Created by: PRO Teacher dowdyp