Ecosystem Released Items Review

Which choice describes a biotic factor in an ecosystem?

• The temperature in the ecosystem stays above 70°F almost year-round.

• There is an average of 80 inches of rainfall per year in the ecosystem.

• The prevailing winds in the ecosystem are from the southwest.

• Plants provide shelter for insects living in the ecosystem.

Tags

NGSS.MS-LS1-4

NGSS.MS-LS2-2

What role does the giraffe play in the food web?

• Primary consumer

• Producer

• Secondary consumer

• Decomposer

Tags

NGSS.MS-LS2-3

What role does the lion play in the food web?

• Primary consumer

• Producer

• Secondary consumer

• Decomposer

Tags

NGSS.MS-LS2-3

What role does the zebra play in the food web?

• Primary consumer

• Producer

• Secondary consumer

• Decomposer

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Residents in a neighborhood complain that there are too many snakes in the neighborhood. A pest-control company says it can eliminate the snakes from the neighborhood. The food chain below shows how snakes participate in this ecosystem. 

plants → beetle → snake → hawk 

How would eliminating snakes affect this ecosystem?

• The beetle and hawk populations would decrease.

• The beetle and hawk populations would increase.

• The beetle population would increase, and the hawk population would decrease.

• The beetle population would decrease, and the hawk population would increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4