Food Webs

What do the arrows show in a food web? (a)  

• What animal eats what

• Transfer of energy

• Predator and prey relationships

• Transfer of food

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NGSS.MS-LS2-3

A partial food web is shown. Make a food chain that shows a complete pathway in which energy flows in this food web.

• Mice

• Snakes

• Hawks

• Grasses

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5.9B

Which organism do the owl and the weasel compete for in the food web?

• Hawk

• Spider

• Grasshopper

• Shrew

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NGSS.MS-LS2-2

rabbits, caterpillars, deer, wolves, owls, grasshoppers, and humans are all...

• decomposers

• consumers

• carnivores

• producers

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NGSS.MS-LS2-2

True or false, this is an example of a food web (a)  

• True

• False

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NGSS.MS-LS2-3

How many carnivores are shown in this food web?

Mathematical Equivalence

ON

Eelgrass is a major source of food for birds and turtles in an estuary. What will most likely happen to the bird and turtle populations if people remove the eelgrass to build a bridge?

• turtle population will increase but bird population decreases

• both turtle and bird population increases

• bird population increases but turtle population decreases

• both bird and turtle populations decrease

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NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

In a lake ecosystem, how would people catching too many minnows most likely affect the minnows' predators?

• predators will loose major food source

• predators will leave to find food

• predators would not be affected at all

• predators would reproduce more

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

In a certain habitat, a coyote's main source of food is the cottontail rabbit. What would happen if the number of coyotes in this habitat were increased?

• number of rabbits increase

• number of rabbits decrease

• rabbits would not exist

• number of rabbits would not change

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NGSS.MS-LS2-1

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NGSS.MS-LS2-4

In a forest ecosystem, which of the following organisms is most likely to be at the top of the food web?

• A) Deer

• B) Grass

• C) Wolf

• D) Rabbit

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NGSS.MS-LS2-3