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10 Cards in this Set
- Front
- Back
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what is the definition of an individual give an example |
one organism ex: rabbit |
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what is the definition of population give an example |
a group of the same species a group of rabbits |
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how is a community different to an ecosystem?
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community- different species, same area ecosystem- |
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what is the definition of biodiversity?
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the environment and the animals there
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why do high levels of biodiversity lead to a healthier ecosystem?
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because the more organisms there are the healthier its considered |
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what are 4 factors that determine a population size?
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-deaths -births -immigration -emigration |
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define immigration
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the movement of animals (individuals) INTO an area
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define emigration
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the movement of animals (individuals) OUT of an area
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what is the rate of population growth determined by?
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by the amount of resources available
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describe exponential growth
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a rapid population increase due to an abundance of resources
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