Disruptions to Ecosystems Reteach

An organism might have more than one arrow coming from them in a food web because (a)   .

• More than one organism may eat them
• They may eat more than one other or
• This organism gets its energy from
• They have no resources available to

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What may happen if the snowshoe hare was removed from the food web pictured?

• The insects in the habitat would increase.
• The shrew population would decrease due to being only hawk food source.
• The willow tree population would decrease.
• Foxes would dies due to no food source. 

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The rabbit in this food web would be considered a _____ .

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In the food web, the fox is considered a (a)   .

• Tertiary Consumer
• Primary Producer
• Secondary Consumer
• Decomposer

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The role of decomposers in an ecosystem is to (a)   .

• Produce food
• Break down dead organic matter into
• Consume plants
• Hunt prey

Answer explanation

Decomposers play a crucial role in ecosystems by breaking down dead organic matter into nutrients. This process recycles nutrients back into the soil, supporting plant growth and maintaining ecosystem health.

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What can too many herbivores result in?

• Over-predation

• Overgrazing and loss of habitat

• Increased plant growth

• More predators

Answer explanation

Too many herbivores can lead to overgrazing, where they consume more vegetation than can be naturally replenished. This results in habitat loss, as the ecosystem struggles to recover from the excessive feeding.

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_____ animals feed on the Blue Lizard.

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What might happen if you remove a primary consumer from the ecosystem?

• There would be more food for secondary consumers.
• The number of primary consumers would increase.
• The number of plants would increase.
• The number of secondary consumers would increase.

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Which organism gets its energy from 3 organisms?

• mountain lion

• hawk

• squirrel

• snake

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Which of the following statements is true of this Waterbird Food Web?

• The bald eagle preys upon the wading birds

• Small Planktivorous Fish are omnivores

• Wading Birds are herbivores

• Sea Ducks are predators to Tundra

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