Food Chains, Food Webs, and Energy Pyramids

Type of model to show the amount of energy available for each step (or trophic level) of a food chain.

• Food chain

• Food web

• Food pyramid

• Food

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is a food web?

• a web created by a spider to trap its food

• a network of food chains in an ecosystem

• a community of plants and animals

• the food that one animal eats

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NGSS.MS-LS2-2

NGSS.MS-LS2-3

Which is an example of a primary consumer?

• A cow

• A wolf

• The sun

• A snake

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NGSS.MS-LS2-4

Which of the following correctly depicts a complete food chain?

• sun, grass, rabbit, snake, hawk, decomposer

• sun, rabbit, grass, hawk, decomposer

• sun, snake, hawk, decomposer

• grass, rabbit, snake, hawk

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

On average how much energy is passed to a higher level in the food web?

• 90%

• 25%

• 10%

• 50%

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

What are producers?

• organisms that use sunlight to make food

• organisms that eat other organisms

• an organism that eats only plants

• an organism that gets energy by breaking down dead organisms

Tags

NGSS.MS-LS2-3

In an ecosystem, snakes feed on frogs, which feed on mosquitoes. Use of a bug spray has decreased the number of mosquitoes. What will probably happen to the number of frogs and snakes?

• Frogs will increase, snakes will increase

• Frogs will increase, snakes will decrease

• Frogs will decrease, snakes will increase

• Frogs will decrease, snakes will decrease

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which organism in the food web pictured is a primary consumer.

• Lavender

• Dragonfly

• Rat

• Butterfly

If the phytoplankton in the energy pyramid in the figure have 20,000 kcal of energy, how much energy does the mackerel have?

• 20.000 kcal

• 2,000 kcal

• 1,000 kcal

• 200 kcal

• 20 kcal

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Check the box next to all the organisms in this food web that are autotrophs.

• Grasshoppers

• Grains

• Birds

• Grasses

• Carrots

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3