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20 Cards in this Set
- Front
- Back
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Succession |
The series of predictable changes that occur in a community over time |
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Primary Succession |
The series of changes that occur in an area where there are no soil or organisms |
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Pioneer species |
The first species to populate an area |
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Secondary Succession |
The series of changes that occur in an are where the ecosystems has been disturbed, but where organisms still exist |
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Population |
All of 1 species in an area |
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Limiting Factor |
An environment factor that causes the population to decrease.
Examples: Predators Food Water Shelter/space Weather |
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Carrying Capacity |
The largest population an area can support |
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Estimate |
An approximation of a number, based on a reasonable assumption |
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Immigration |
Moving into a population |
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Emmigration |
Leaving the population |
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Death rate |
The number of deaths in a certain population over a certain amount of time |
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Population Density |
The number of individuals in an area of specific size. |
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Extinction |
The disappearance of all members of a species from earth |
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Endangered species |
A species in danger of becoming extinct in the near future |
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Camouflage |
The method by which an organism disguises itself it blends in with its surroundings |
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Mimicry |
The resemblance in behavior, look, sound or smell of an organism to another organism or object in it's surroundings. Mimicry helps protect organisms from predators |
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Biodiversity |
The number of different species in an area |
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Threatened species |
A species that COULD become endangered in the near future |
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Evolution |
The process through which species change over time. |
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Natural selection |
The process by which the organisms that are BEST SUITED to the environment and PASS OFF THEIR TRAITS TO THEIR OFFSPRING |
