Changes to Ecosystems

Which organisms would be unable to escape and therefore perish from a fire?

• the deer

• the birds

• the tree

• the raccoon

Tags

NGSS.3-LS4-3

After this prairie was flooded, all the animals left and the grasses died. Which organism will most likely return first?

• jackrabbit

• hawk

• coyote

• grasses

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which organisms are least likely to perish if this grassland is flooded?

• butterfly and jackrabbit

• hawk and butterfly

• coyote and jackrabbit

• coyote and hawk

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which change would most likely cause all living things in an ecosystem to perish or move away?

• a flood on the plains

• fire in a forest

• a tornado on the plains

• a landslide down a mountain

Tags

NGSS.MS-ESS3-2

NGSS.MS-LS2-4

Which change would least likely cause plants in an ecosystem to perish?

• an earthquake on a grassland

• a hurricane along a beach

• a fire in a forest

• a flood in a valley

Tags

NGSS.MS-LS2-4

What would happen to this food chain if there was no grass?

• The grasshoppers would eat the mice, and the snakes would move away.

• The mice would have more grasshoppers to eat.

• The snake population would increase.

• The grasshopper population would decrease.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

The removal of which organism would cause all other populations to decrease?

• small ocean plants

• small ocean animals

• tuna

• shark

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What might happen to the rest of the food chain if there was an increase in the grasshopper population?

• The mouse population will decrease.

• The snake population will decrease.

• The hawk population will decrease.

• The grass population will decrease.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What might happen to the rest of the food chain if there was a decrease in the snake population?

• The grasshopper population will increase.

• The mouse population will decrease.

• The hawk population will decrease.

• The grass population will decrease.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

All of the following might happen to the rest of the food chain if there was a decrease in the shrew population EXCEPT -

• The grasshopper population will increase.

• The owl population will decrease.

• The grass population will increase.

• The grass population will decrease.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4