Food Webs and Chains

The picture shows an energy pyramid. What will most likely happen to the foxes and the wolves if the rabbits are removed?

• The foxes will eat more wolves

• The foxes will eat fewer wolves

• There will be more foxes and wolves

• There will be fewer foxes and wolves

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The picture shows an ocean bay food chain. Sea otters move into the ocean bay. They eat all the sea urchins. This change will cause the

• kelp to have less food

• crabs to have more food

• sea ducks to have less food

• arctic foxes to have more food

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which model correctly shows energy flow in a food chain?

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NGSS.MS-LS2-3

NGSS.MS-LS2-2

A marine food web is shown. Which organism below belongs in level 3 of this marine food web?

• salmon

• zooplankton

• sea algae

• polar bear

Tags

NGSS.MS-LS2-3

A marine food web is shown. Which chart correctly shows three of the organisms according to their roles in cycling matter in the marine food web?

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NGSS.MS-LS2-3

NGSS.MS-LS2-2

This picture shows the energy flow through a meadow community. Which of the following would most likely occur to the populations within the community of organisms immediately after a wildfire burns the environment?

• Hawks would increase and foxes would increase.

• Hawks would decrease and foxes would increase.

• Meadow plants would increase and rabbits would decrease.

• Meadow plants would decrease and rabbits would decrease.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which statement best describes what will happen if the population of herbivores in the community decreases?

• The population of foxes will increase.

• The population of hawks will increase.

• The population of rabbits will increase.

• The population of meadow plants will increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which statement best describes the flow of energy as it passes through the organisms in the pyramid?

• Energy flows through the organisms from bottom to top and increases at each level.

• Energy flows through the organisms from bottom to top and decreases at each level.

• Energy flows through the organisms from top to bottom and increases at each level.

• Energy flows through the organisms from top to bottom and decreases at each level.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

The diagram shows a simple food web. Which animal is classified as an omnivore?

• red fox

• deer

• black bear

• rabbit

The diagram shows a simple food web. Which of the following animals might compete with the coyote in this food chain?

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Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2