Changing Population Trends

What phrase describes the largest number of individuals of a population that the environment can support?

• carrying capacity

• population crash

• lag phase

• exponential growth

What word describes the type of growth of this rabbit population?

• exponential

• logistic

• S-shaped

• predator-prey

What word describes a seasonal movement of a population from place to place:

• emigration

• immigration

• migration

• hibernation

What type of population growth is depicted in this graph?

• exponential growth

• logistic growth

• performance growth

• nagative growth

What word describes a species whose population is close to dying out:

• extinct

• endangered

• threatened

What word describes a species that is at risk because of sharp decrease in population?

• extinct

• endangered

• threatened

Tags

NGSS.MS-LS2-5

Emigration means ...

• Members of a population moving out of a community.

• Season movement from place to place.

• Members of a population moving into a community.

• Communities swapping habitats every winter.

On Isle Royale, wolves are the main predators of moose. The graph shows the changing wolf and moose populations on the island over a 50-year time span. Which statement provides the strongest explanation for the trends in the two populations?

• The populations of predators and prey are limited by abiotic factors only.

• Predation acts a density-dependent limiting factor on prey, but not on predators.

• Predation acts as a density-independent limiting factor on predators, but not on prey.

• Predator-prey relationships act as density-dependent limiting factors on both predators and prey.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What growth pattern describes a population whose growth rate slows or stops following a period of exponential growth?

• logistic growth

• population growth

• exponential growth

• predator-prey cycle

Tags

NGSS.HS-LS2-1

A scientist is studying a population of sharks in the Pacific Ocean. The scientist reports that compared to a few years ago, the sharks are spending less time in equatorial waters and more time in waters near California and Alaska. Which statement describes the type of change that is occurring to the shark population?

• Their geographic range is changing.

• Their population density is changing.

• Their population distribution is changing.

• Their carrying capacity is changing.

Tags

NGSS.MS-LS2-4