Biodiversity and Population Dynamics

The graph below represents the growth of a population of flies in a car? Which of the following statements best describes the graph?

• The fly population did not change.

• The fly population decreased, then increased.

• The fly population grew following the logistic growth model.

• The fly population grew following the exponential growth model.

Which of the following could be a density-independent limiting factor in the desert?

• number of prey

• food supply

• parasitism

• rainfall

Tags

NGSS.MS-LS2-1

Which point in this graph represents exponential growth?

• Point E

• Point A

• Point B

• Point C

Tags

NGSS.MS-LS2-4

The graph represents _____ of a population.

• logistic growth model

• exponential growth model

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

Which point on the graph best represents the carrying capacity?

• Letter A

• Letter C

• Letter E

• Letter D

Tags

NGSS.MS-LS2-4

Owls and snakes eat mice and other organisms. What would happen to the mice population if the owl population decreased?

• The population would decrease, as the loss of owls as part of their diet is a limiting factor.

• The population would decrease, as shelters created by owl nests is a limiting factor.

• The population would increase, as competition for food is a limiting factor.

• The population would increase, as predation by owls is a limiting factor.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS2-2

Which of the following is density-independent limiting factor?

• disease

• competition

• earthquake

• predation

What causes competition to occur in an environment?

• Good conditions make resources plentiful.

• Organisms struggle for a limited resource.

• Members of a population have different roles.

• A population falls below the environment’s carrying capacity.

Tags

NGSS.MS-LS2-4

Without other changes to a population, which of the following will cause a population to increase in size?

• The birth rate equals the death rate.

• The birth rate is less than the death rate.

• The birth rate is greater than the death rate.

• The birth rate and the death rate both equal 0.

When individuals join a population

• Aliens
• migration
• Immigration
• Emigration