Populations Review

What is "carrying capacity" mean?

• The amount you can carry

• how many animals live in an ecosystem

• the size of a population that is supported by the resources in an ecosystem

• the amount of sunlight in an ecosystem

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A population can be affected by...

• the size of other populations

• living factors

• nonliving factors

• all of the above

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An ecosystem contains...

• one population

• only animals

• only plants

• many populations of animals and plants

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Which is an example of a natural disaster limiting population growth?

• A month of heavy rainfall fills up watering holes, and a zebra population has plenty of water.

• Space in a forest becomes crowded, and a population of low-lying plants cannot get enough sunlight.

• A strong thunderstorm destroys many of the nests of a bird population.

• A month of colder air in the spring delays the growth of plants that provide food for a deer population.

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Growth rate where individuals reproduce at a constant rate.

• Logistic

• Exponential

• Lag Phase

• Carrying Capacity

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Number of individuals per unit area.

• Population Density

• Immigration

• Emigration

• Population

Any environment can only support a maximum population of individuals. This is called:

• Carrying Capacity

• Lag Phase

• Exponential Growth

A limiting factor will cause a population to ____________.

• Increase

• Decrease

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Competition, Predation, Parasitism, and Disease are all examples of Density-_____________ Limiting Factors.

• Independent

• Dependent

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The method of estimating a population where an organism is marked, released, then captured a while later is known as:

• Direct Observation

• Mark and Recapture

• Indirect Observation

• Sampling