AP Population Ecology

The average number of individuals per unit of area or volume is called ______.

• Population size

• Population systematics

• Population density

• Population distribution

If birth rate plus immigration exceeds death rate plus emigration, a population _______.

• grows

• declines

• stays the same

• none of the above

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Emigration is the movement of individuals ______ a population.

• into

• out of

The lion is the natural predator of the zebra. If the zebra population drops, what will likely happen to the lion population?

• drop

• thrive

• be unaffected

• decrease, then increase exponentially

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Under ideal conditions with unlimited resources, a population will have ________.

• linguistic growth

• experimental growth

• exponential growth

• logistic growth

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The common brushtail possum is a marsupial native to Australia. This possum was introduced to New Zealand where it had no natural predators and had an abundant food supply. Which of these likely occurred a few years after the introduction of this possum to New Zealand?

• The possums became extinct.

• The possums developed shorter life spans.

• The possum population grew to a larger size.

• The possum population evolved into a different species.

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These organisms occupy stable environments, are larger in size and have longer life expectancies. They produce, during their life spans, fewer offspring, but place a greater investment in each.

• k-strategist

• r-strategist

• m-strategist

• s-strategist

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What is the carrying capacity of the following graph?

• 1000

• 8000

• 800

• 600

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What term is used to define anything that regulates the size of a population?

• density

• a limiting factor

• carrying capacity

• biodiversity

Which of the following would INCREASE the carrying capacity of an ecosystem?

• increase in predators

• disease

• increase in available food

• drought

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