Limits to Growth

What is the carrying capacity of the graph?

• around 500

• more than 500

• less than 500

• around 600

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Natural disasters can be considered limiting factors.

• true: density independent limiting factors

• false; natural disasters are not limiting factors

• true: density dependent limiting factors

• false: because Mrs. Schaffer said

Tags

NGSS.MS-ESS3-2

Limiting factors which impact the size of a population no matter how large that population is.

• Density Independent Limiting Factors

• Density Dependent Limiting Factors

• Carrying Capacity

• Exponential Growth

An environmental factor such as storms and extreme heat or cold that decrease a population are considered to be. 

• density- dependent factor

• population density

• dispersion

• density- independent factor

Tags

NGSS.MS-LS1-5

The population of adult frogs in a wetlands ecosystem has increased to 1000 individuals, which is its carrying capacity. The frogs eat flies and other small animals, and they are prey for raccoons, snakes, and a variety of large birds. Which most likely would happen if an additional 200 adult frogs immigrated to the ecosystem?

• The carrying capacity for frogs in the ecosystem would increase by 200 frogs.

• The carrying capacity for frog predators in the ecosystem would increase by 200 individuals.

• The frog population would experience a pattern of exponential growth.

• About 200 adult frogs would die because of lack of resources, or by predation or disease.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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-LS2-4

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

What is the carrying capacity for this sheep population?

• 9 million

• 0.9 million

• 1.6 million

• 1.0 million

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

When a population grows past the ecosystem's carrying capacity, what happens to the population?

• Continues to grow

• The population starts to die off to return to carrying capcity

• The population will go extinct due to lack of resources

• The population grows then finds a new carrying capacity

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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.