Matter and Energy

In which level would mice and rabbits be in a food chain?

• tertiary consumer

• secondary consumer

• primary consumer

Tags

NGSS.MS-LS2-3

At which level would weeds and grass be placed on a food chain?

• primary producers

• primary consumer

• secondary consumers

Tags

NGSS.MS-LS1-6

This image shows one type of decomposer. Which statement describes the role of decomposers in a food web?

• Decomposers are not necessary in a food web.

• Decomposers break down matter so plants can use it.

• Decomposers create energy by producing their own food.

Tags

NGSS.MS-LS2-3

What is the primary role of decomposers in a

food web?

• to recycle energy and materials from dead producers and consumers

• to control the population of producers and consumers

• to compete with producers for energy and other resources

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

A student is identifying food chains in a

diagram of a food web. Which of these

organisms might be a consumer?

• frog

• water lily

• redwood tree

Tags

NGSS.MS-LS2-2

Producers and consumers are both pictured in a

diagram of a food pyramid. Which statement best

describes how they differ from one another?

• Consumers produce all the energy they need.

• Producers eat living organisms, and consumers eat organisms that have died.

• Consumers obtain energy by eating food, and producers obtain energy from sunlight.

Tags

NGSS.MS-LS2-3

A mangrove swamp contains many organisms living among the large roots of the mangrove trees. This food web shows some of the relationships in that ecosystem. Which of the choices represents a producer?

• mold

• pelican

• phytoplankton

Tags

NGSS.MS-LS1-6

If there was a decrease in the beetle population in this food chain, how might the food chain be affected?

• The population of green plants would decrease.

• The green plants would increase and the toad population would decrease.

• The toad and snake populations would increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is the lowest level in a food chain?

• tertiary consumers

• primary consumers

• producers

Which of the following is at the highest level of the food chain?

• producers

• tertiary consumers

• secondary consumers

Tags

NGSS.MS-LS2-3