Chapter 5: Populations Flashcards

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1
Q

What is a population?

A

group of organisms that are the same species living in the same place and time

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2
Q

What are populations dictated by?

A

natality (birthrate), mortality, immigration, and emigration

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3
Q

What is a demographic?

A

study of statistics of human populations

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4
Q

What limits exponential growth?

A

resources

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5
Q

As a population increases what is depleted?

A

resources

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6
Q

What is logistical growth

A

population’s growth decreases, stops, and sometimes plunges after a period of exponential growth

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7
Q

What is the carrying capacity of an environment

A

maximum population number

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8
Q

How do you find population density?

A

number of organisms per unit of measure

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9
Q

What are the four limiting factors for growth rate

A

competition for resources, predation, parasitism & disease, and changes in environmental conditions

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