Population Ecology

A ________ is a group of organisms of one species that interbreed and live in the same place at the same time.

• community

• ecosystem

• population

• biome

Which contributes to a positive population growth?

• immigration

• negative birth rate

• emigration

• positive death rate

What type of factor has an increasing impact as the population size increases?

• density-independent

• density-dependent

• cohort effect

• survivorship factor

Tags

NGSS.HS-LS2-6

Which of the following are density dependent factors? Select all that apply.

• competition for resources

• predation

• disease

• natural disasters

Tags

NGSS.MS-LS2-4

Which of the following are examples of a density independent factors? Select all that apply.

• forest fire

• weather

• storms

• disease

Factors like predation can have a positive benefit to the population of prey organisms because predators tend to keep prey populations below their ___________.

• carrying capacity

• sustainibility number

• exponential growth point

• competition level

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

As a population of a species increases within a territory, which of the following most likely also increases?

• Immigration

• Food supply

• Carrying capacity

• Competition

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What type of growth model is shown in image A?

• Exponential

• Logistic

Tags

NGSS.HS-LS2-1

What type of growth model is shown in image B?

• Exponential

• Logistic

What point on the graph represents carrying capacity?

• a

• b

• c

• d

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4