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Natural Selection

Adaptation A trait (or action) that helps an organism survive in its environment. Could be behavioral, structural, or physiological.
Camouflage Altering or changing something's appearance to conceal it. Allows an organism to blend into its environment.
Competition When many organisms are struggling to get the same resources (such as food, habitat, mates, etc.)
resistant When an organism has immunity to a harmful substance or a disease - it is not harmed or affected by the substance or disease.
Diversity The variety of different types or kinds.
Biodiversity The variety of different organisms/species in a given environment.
Environment An organism's surroundings and habitat.
Mutation A random change in an organisms genetic information (DNA).
Natural Selection Organisms best adapted to their environment are able to survive and pass on their genes. Can also be stated as "survival of the fittest".
Overpopulation Too many organisms in an area which can lead to competition.
Pollutant A man-made harmful substance that is released into the natural environment.
Predator An organism that preys on (hunts & kills) another organism.
Prey An organism that is hunted.
Resource Things in the environment that help an organism/species to survive, like air, water, food, shelter, a mate. (These can be used up!)
Species A category of organisms. A group of the same type of organisms that can mate & produce fertile offspring.
Survival of the Fittest Those organisms best adapted to their environment (with the best traits for their environment) will survive (& pass on their genes.)
Variation Small differences within a species, such as differences in hair color in humans, or differences in fur color of mice.
well-adapted Having good traits for a certain environment.
stable unchanging & steady
Created by: buchanandd



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