FOOD CHAINS AND FOOD WEBS

Where does the energy start in this food chain?

• Plant
• Sun
• Deer
• Wolf

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NGSS.MS-LS2-3

Which of these completes the food chain correctly?

• a rock

• a fox

• a plant

• an egg

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NGSS.MS-LS2-3

Which of these is a possible food chain for this environment?

• Sun → grass → fly → frog

• frog → fly → grass → Sun

• Sun ← grass ← fly ← frog

• Sun → fly → frog → snake

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NGSS.MS-LS2-2

NGSS.MS-LS2-3

_______are animals that eat only plants.

• herbivore
• carnivore
• omnivore
• heterotroph

What is the effect of removing prey from a food chain?

• All predators above them will die or suffer.

• The prey's predator will die or suffer, but everybody else should be fine.

• The prey will always, eventually, come back

• The predators population will grow

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NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

If the mouse population becomes sick and decreases, which statement about the food web will be true?

• The grass population will decrease.

• The hawk population will increase.

• The grass population will increase.

• The wildflower population will decrease.

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Recently, a family of bobcats moved into an area with a large rabbit population. What changes may occur in the ecosystem?

• The rabbit population may increase
• The rabbit population may decrease
• The rabbit population may increase first, then decrease
• The rabbit population will remain the same

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What's the role of consumers in a food chain?

• Use sunlight to make food 
• Eat other species and keep them from overpopulating
• Break down dead stuff
• Add nutrients to the soil

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NGSS.MS-LS2-2

NGSS.MS-LS2-3

A third-level consumer has to be which type?

• Carnivore.
• Decomposer.
• Producer.
• Herbivore.

Which of the following is a herbivore?

• cricket
• frog
• hawk
• shrew

Tags

NGSS.MS-LS2-3