All Lessons Ecosystem Quizizz

A rabbit depends on various plants in an ecosystem to survive. Which would most likely happen if a drought decreased the plant population?

• The rabbit population would increase.

• The rabbit population would decrease.

• The rabbit population would remain the same.

• The rabbit population would increase, then decrease quickly.

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This diagram shows a simple ocean food chain.

algae → fish → seal

Which will most likely occur if the fish population decreases?

• The algae and seal populations will increase.

• The algae and seal populations will decrease.

• The algae population will increase, and the seal population will increase.

• The algae population will increase, and the seal population will decrease.

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The diagram below is an aquatic food chain. Which will most likely occur if there is overfishing and a loss of clams?

• The amount of algae would increase and the number of bass would increase.

• The amount of algae would decrease and the number of bass would increase.

• The amount of algae would increase and the number of bass would decrease.

• The amount of algae would decrease and the number of bass would decrease.

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• algae

• crayfish

• fish

• plant

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Why are animals like deer, raccoons, bears, and coyotes sometimes seen in neighborhoods?

• because it is easier to find food

• because they can escape predators

• because their habitats are increasing

• because their habitats are decreasing

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The diagram below is a simple grassland food chain.

grass - mouse - snake

If a predator of the snake were introduced to the ecosystem, which would most likely happen?

• The grass population would increase.

• The snake population would increase.

• The mouse population would increase.

• The mouse population would decrease.

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This is an aquatic food chain. Which situation will most likely occur if the pond is polluted?

• The tadpole population will decrease while the others will remain the same.

• The algae population will decrease while the others will remain the same.

• The algae, tadpole, and perch populations will decrease.

• The algae, tadpole, and perch populations will increase.

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Which is an example of a terrestrial organism relying on an aquatic organism for food?

• Eagles consume fish to survive.

• Birds consume worms to survive.

• Frogs consume flying bugs to survive.

• Fish consume seaweed to survive.

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How are salt marshes and lakes different?

• Salt marshes are freshwater and lakes are salt water.

• Salt marshes are connected to the ocean and lakes are inland.

• Salt marshes cannot sustain life and lakes have many organisms.

• Salt marshes are not affected by tides and lakes are affected by tides.

Which is a main difference between a grassland and forest ecosystem?

• the amount of trees, as forests have more

• the amount of trees, as grasslands have more

• their location, as only forests are found in North America

• their location, as only grasslands are found in North America