Food Web and Relationships

Using the food web above, what would happen if the Caterpillar was removed from this food web?

• the number of grasshoppers would increase

• the snake population would decrease due to caterpillars being the snakes only food source

• nothing would happen

• the snake population would increase

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The Hawk in this food web would be considered a --

• Producer

• Primary consumer

• Secondary consumer

• Tertiary consumer

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The blue jay and the grasshopper in this food web represent what type of ecological relationship?

• mutualistic

• parasitic

• commensalistic

• predator-prey

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Which of the following food chains correctly shows the flow of energy in this food web?

• Eagle-->lizard-->caterpillar--> plant

• Eagle --> rabbit --> snail --> plant

• Lizard-->caterpillar-->plant

• Plant-->Snail-->Bluebird-->Eagle

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The graph shows what happens to the deer population when bears are added to the ecosystem. What does this suggest bears are?

• consumers

• decomposers

• producers

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Which of the following is a primary consumer in this food web?

• Owl

• Blue jay

• Grasshopper

• Snake

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These organisms eat only producers in an ecosystem.

• carnivores

• omnivores

• herbivores

• decomposers

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What is an organism that gets its food by eating other living organisms?

• Consumer

• Producer

• Autotroph

• Decomposer

Which of the following is NOT considered to be a symbiotic relationship?

• A hawk feeding on a field mouse

• Worms living in a cow's intestine

• A deer tick feeding on a host animal

• A bee pollinating a flower

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NGSS.MS-LS2-2

A plover is an animal that picks and eats scraps of meat from the crocodile’s teeth. The crocodile gets a free teeth-cleaning! This is an example of --

• commensalism

• mutualism

• parasitism

• predation