Biological Factors Quick Check
1 of 4 1 of 4 Items
Question
How did the reintroduction of wolves to Yellowstone National Park affect the beaver population?(1 point)
Responses
The wolves decreased the population by eating beavers’ prey.
T he wolves decreased the population by eating beavers’ prey.
The wolves increased the population by eating beavers’ predators.
T he wolves increased the population by eating beavers ’ predators.
The wolves decreased the population by eating beavers.
T he wolves decreased the population by eating beavers.
The wolves increased the population by eating a competitor.
Biological Factors Quick Check
2 of 4 2 of 4 Items
Question
What happened to Yellowstone National Park when wolves disappeared?(1 point)
Responses
The grassy areas increased.
The grassy areas increased.
The willow tree population increased.
The willow tree population increased.
The deer population increased.
The deer population increased.
The bear population increased.
The correct response is:
The deer population increased.
Which food source’s scarcity caused the Yellowstone National Park beaver population to decrease?(1 point)
Responses
willow
willow
fish
fish
otter
otter
grass
Biological Factors Quick Check
4 of 4 4 of 4 Items
Question
What happens to an ecosystem when the primary consumers disappear?(1 point)
Responses
Both the producer and secondary consumer populations increase.
Both the producer and secondary consumer populations increase.
The producer population increases, while the secondary consumer population decreases.
The producer population increases, while the secondary consumer population decreases.
Both the producer and secondary consumer populations decrease.
Both the producer and secondary consumer populations decrease.
The producer population decreases, while the secondary consumer population increases.
The correct response is:
The producer population decreases, while the secondary consumer population increases.
The correct response is:
The wolves decreased the population by eating beavers' predators.
The correct response is:
willow