Science Study Guide-Jesse

A PREDATOR is an organism that

• Eats another organism in part or whole

• Does not eat other organisms

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What is an example of a predator-prey relationship?

• A chameleon eating a cricket

• A tree getting energy from the sun

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Which of these is NOT a carnivore?

• 
• 

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Why is an herbivore considered a predator.

• An herbivore’s prey is a plant and plants are organisms.

• An herbivore's prey are rocks.

What is an example of how predators affect prey populations?

• The zebra population in an area decreases after lions begin hunting them.

• The squirrels in a tree eat nuts.

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How does the scarcity of prey populations affect predator populations?

• Too many predators means the prey population will increase (go up)

• Scarcity (not enough) of a prey population leads to a decrease in the predator population.

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Why are scientists able to see predictable patterns in predator and prey populations?

• Predator and Prey populations are always Unpredictable

• Predator and prey populations often interact in predictable ways.

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What problem did scientists discover in the predator and prey populations in Yellowstone ecosystem?

• There were not enough predators and too much prey.

• There were too many predators and Not enough prey

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What describes mutualism?

• Two species that harm each other

• Two species rely on each other to survive

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How might a decrease in the population of one species likely affect the other species in a mutualism?

• A decrease in population of one species will likely cause a decrease in the other population.

• A decrease in population of one species will likely cause an increase in the other population.

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