Population Ecology Review

Giraffes, lions, zebras, hyenas, and all the other living things of the Serengeti make up a(n)

• ecosystem

• population

• community

• 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

• immigration

• emigration

• migration

• population growth

You are studying the vegetation communities of the Mongolian grasslands in a 1000-square-kilometer-area. What is your best strategy for estimating the number of individuals of different plant species growing throughout the grasslands?

• direct observation

• sampling

• indirect observation

• simply counting each one

Which is the highest population density of grasshoppers?

• 35 grasshoppers/10 square meters

• 40 grasshoppers/20 square meters

• 1 grasshopper/1 square meter

• 50 grasshoppers/30 square meters

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

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 saltmarsh

• population

• biosphere

• community

• ecosystem

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

"All the living things and their physical environment within a given area" best defines

• community

• ecosystem

• biosphere

• 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

• logistic growth.

• limiting factors.

• carrying capacity.

• exponential growth.

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-2

In the example above, where wolves are reintroduced to Yellowstone National Park, the number of elk and other prey species within the park are

• a density independent factor.

• an example of biotic potential.

• a density dependent factor.

• a limiting factor.

Tags

NGSS.HS-LS2-2

NGSS.HS-LS2-6

NGSS.HS-LS4-5

Pandas depend on bamboo. The amount of intact bamboo forest will help determine the

• biotic potential of the population.

• carrying capacity of the population.

• sex ratio of the population.

• limiting factor of the population.

Tags

NGSS.HS-LS2-1

The community is the simplest level of organization that the ecologist studies.

• True

• False