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14 Cards in this Set
- Front
- Back
Carrying Capacity |
The largest size that a population can reach in an ecosystem. |
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population
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A group of organisms of the same species that live in the same area.For example, a desert will have populations of different species of lizards and cactus plants.
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population density
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A measure of the number of organisms that live in a given area.The population density of a city may be given as the number of people living in a square kilometer.
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population dynamics
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The study of the changes in the number of individuals in a population and the factors that affect those changes.
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population size
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The number of individuals in a population at a given time
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range
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The large geographic area where a population lives
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competitor
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A species that is often compared to an opportunist species. How does it compare? Its life span is longer. It has fewer offspring.
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emigration
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In population studies, the movement of individuals out of an ecosystem
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immigration
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In population studies, the movement of an organism into a range. The range is inhabited by individuals of the same species
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limiting factor
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A factor or condition that stops the continuing growth of a population in an ecosystem.
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opportunist
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A species that is often compared to a competitor species. How does it compare? Its life span is shorter. It has large numbers of offspring
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extinction
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The disappearance of a species with no chance of its coming back
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habitat
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The natural environment in which a living thing gets all that it needs to live. A desert is a habitat. A coral reef and a freshwater lake are, too.
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pollution
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The giving off or the presence of harmful substances into the air, land, or water.
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