Food Web and Relationships

A student researching a northern forest ecosystem learns the following information about feeding relationships in the ecosystem.

(Look at your picture)

Which food web best represents the flow of energy in these feeding relationships?

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NGSS.MS-LS2-1

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Many Texas caves provide a habitat for animals that live in total darkness. The caves are damp and cool, and most of the caves are rich in mineral calcite. (Look at your picture) The diagram shows the relationships of some organisms involved in a cave ecosystem. Based on the diagram, which of the following statements is valid?

• Owls are predators of bats, and bats are predators of moths.

• Beetles compete with bats and cave spiders.

• Snakes prey on bats and owls.

• None of the above.

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NGSS.MS-LS2-1

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The partial food web is showing an aquatic environment. This type of environment has many organisms in the same trophic levels.

(Look at the picture)

Which two types of organisms in this aquatic food web have a producer - consumer relationship?

• A. Microscopic algae and white suckers

• B. Small invertebrates and amphipods

• C. Phytoplankton and mummichogs

• D. Amphipods and channel catfish

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NGSS.MS-LS2-3

Some students are studying the relationships between organisms in a food web.

(Look at your picture)

How many predators shown in this food web are omnivores?

• A. 1

• B. 2

• C. 3

• D. 4

Which of these correctly describes a relationship between organisms in the soil food web below?

• Protozoa gets nutrients from small arthropods.

• Mammals are predators of birds.

• Nematodes prey on arthropods.

• Bacteria get nutrients from organic matter.

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NGSS.MS-LS2-2

In the aquatic food web shown, which two organisms have a predator-prey relationship?

• A. Shad and sturgeons

• B. Sturgeons and blue crabs

• C. Blue crabs and rangia clams

• D. Copepods amphipods

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NGSS.MS-LS2-2

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The African Savanna is a grassland scattered with shrubs and small trees. Some of the organisms that live in the savanna are shown in the picture.(Look at your picture)Which two types of organisms have a producer-consumer relationship in this African Savanna?

• Zebras and hyenas

• Hyenas and cheetahs

• Trees and elephants

• Fungi and dung beetles

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NGSS.MS-LS2-3

How many organisms in this food wen eat only producers?

(Look at your picture)

• A. 1

• B. 2

• C. 3

• D. 4

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NGSS.MS-LS2-1

The flow of energy in some Australian food chains is modeled in the energy pyramid below. (Look at your picture) Based on the model, which consumers would receive the greatest amount of energy captured by the producers in their food chains?

• Wedge-Tailed eagles

• Chuditch

• Ring-Tailed opossums

• Eucalyptus trees

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NGSS.MS-LS2-3

Who is the top, apex, tertiary consumer in this food web?

• Raccoon

• Eagle

• Grass

• Snake

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NGSS.MS-LS2-2

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