Predator vs Prey Graphs

Identify the peak of the deer population.

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HS-LS2-1

HS-LS2-2

In this relationship, one organism hunts, kills, and eats the other organism.

• Mutualism

• Commensalism

• Predator-Prey

• Parasitism

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NGSS.MS-LS2-3

As prey population goes up... predator populations go _____________

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NGSS.MS-LS2-2

NGSS.MS-LS2-4

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-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

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-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What happens when the population of prey decreases?

• The population of predator will increase

• The population of predator will increase and then decrease

• The population of predator will not be affected

• The population of predator will decrease shortly after

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

In a predator-prey graph, what typically happens to the predator population when the prey population reaches its peak?

• The predator population peaks shortly after

• The predator population declines

• The predator population remains constant

• The predator population crashes

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following best describes the relationship between predator and prey populations in a stable ecosystem?

• Predator populations always exceed prey populations

• Prey populations always exceed predator populations

• Predator and prey populations fluctuate in cycles

• Predator and prey populations remain constant

In a typical predator-prey graph, what does the time lag between the peaks of prey and predator populations indicate?

• Predators respond immediately to changes in prey population

• Predators have a delayed response to changes in prey population

• Prey have a delayed response to changes in predator population

• There is no relationship between predator and prey population peaks

Tags

NGSS.MS-LS2-4

What is the primary factor that causes the oscillations seen in predator-prey population graphs?

• Climate changes

• Availability of food resources

• Predator-prey interactions

• Human intervention

Tags

NGSS.MS-LS2-4