Population Ecology Question Preview (ID: 48485)


Chapter 4. TEACHERS: click here for quick copy question ID numbers.

Giraffes, lions, zebras, hyenas, and all the other living things of the Serengeti make up a(n)
a) ecosystem
b) population
c) community
d) biosphere

Every spring, many species of bird travel north to the Arctic to breed, and in the fall travel south again for the winter. This is an example of
a) immigration
b) emigration
c) migration
d) population growth

You will be conducting a study of the interactions of vegetation, animals, mineral composition of the soil, and water levels in a saltmarsh. You are studying the
a) saltmarsh population.
b) saltmarsh biosphere.
c) saltmarsh community.
d) saltmarsh ecosystem.

“All the living things and their physical environment within a given area” best defines
a) a community
b) an ecosystem
c) the biosphere
d) a population

A population of wolves is reintroduced into Yellowstone National Park. For the first decade, the wolf population grows exponentially. Then, the population growth slows. The new pattern is known as
a) logistic growth
b) limiting factors
c) carrying capacity
d) exponential growth

If 300 deer live within a 20-km2 area, then 15 deer per km2 is the deer ______ for that area.
a) carrying capacity
b) population density
c) limiting factor
d) survivorship curve

A grassland experiences a drought that causes most of the plants to die and several watering holes to dry up. The antelope that live on the grassland experience a decrease in population because water and plants are key
a) biotic factors
b) abiotic factors
c) resources
d) habitats

In a population of 100 monkeys, you count 48 males and 52 females. This population has an approximately even
a) sex ratio
b) biotic potential
c) survivorship curve
d) carrying capacity

A population’s growth rate is determined by births, deaths,
a) immigration, and migration.
b) migration, and biotic potential.
c) immigration and emigration
d) immigration, and biotic potential.

An example of a density dependent limiting factor is
a) an avalanche
b) the amount of available food.
c) a sudden flood.
d) a decrease of water due to drought.

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