Predator Prey Graph

In the following graph, the predator and prey populations change over time. What is the reason for the predator population decreasing?

• The predator eats the prey

• The prey is eaten by the predator

• The predator runs out of food when the prey population is low

• The prey survives longer when the predator population is low

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

In the following graph, the predator and prey populations change over time. What is the reason for the prey population increasing?

• The predator eats the prey

• The prey is eaten by the predator

• The predator runs out of food when the prey population is low

• The prey survives longer when the predator population is low

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS2-2

A Coyote eats a rabbit. The rabbit has eaten grass. Select how the flow of energy would look.

• Grass ---> Rabbit---> Coyote

• Rabbit<---- Grass<---- Coyote

• Coyote-----> Rabbit----> Grass

• Coyote<---- Rabbit-----> Grass

Tags

NGSS.MS-LS2-3

A fox eats a squirrel. The population of squirrels has...

• increased.

• decreased.

• stayed the same.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Which classification best fits the mountain lion?

• Carnivore

• Herbivore

• Producer

• Omnivore

Select TWO likely effects of a decrease in the snake population

• There would be an increase in rabbits

• There would be a decrease in hawks

• There would be an increase in shrubs

• There would be more competition for the mountain lion

• The insect-eating bird would go extinct

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS2-2

What would most likely happen to the producers if a new predator was introduced to the ecosystem?

• The population of producers would decrease because the new predator would eat the trees, shrubs, and grass

• The population of producers would increase because the predators would eat herbivores as prey, so there wouldn't be as many to eat the trees, shrubs, and grass

• The population of producers would increase because the herbivores would begin eating the predators instead of the trees, shrubs, and grass

• The herbivores would use the grass, trees, and shrubs to hide from the new predator, so the amount would decrease

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS2-2

How are the populations of predators and prey related?

• If there is not enough prey, the predators will die out

• If there is too much prey, the predators will die out

• If there are not any predators, the prey will die out

• If there are too many predators, the prey will overpopulate

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS2-2

An animal that hunts and kills another animal for food is a __________.

• Prey

• Producer

• Predator

• Decomposer

In a predator-prey graph, what typically happens to the prey population when the predator population increases?

• A) The prey population increases.

• B) The prey population decreases.

• C) The prey population remains constant.

• D) The prey population becomes extinct.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-3