Energy Flow: Food Chains & Food Webs

The diagram shows the flow of energy in a typical ecosystem.

Which box represents organisms with the greatest amount of energy flowing through them?

• A

• B

• C

• D

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which statement is not correct?

• Anaerobic respiration releases less energy than aerobic respiration.

• Energy flowing through biological systems is recycled.

• Food chains show energy flow in ecosystems.

• The sun is the principal source of energy input into biological systems.

Why is energy flow in biological systems described as non-cyclical ?

• Energy always passes to larger organisms.

• Energy cannot pass from living things to the environment.

• Energy is lost as heat by living organisms.

• The source of the energy is usually the Sun.

Tags

NGSS.MS-LS1-7

The diagram shows part of a food web.

Which organisms are producers, herbivores and carnivores?

• Producer = trees

  herbivores = moth caterpillars

  carnivores = deer

• Producer = hawks

  herbivores = seed-eating birds

  carnivores = grasses

• Producer = grasses

  herbivores = spiders

  carnivores = beetles

• Producer = trees

  herbivores = beetles

  carnivores = spiders

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Which sequence describes the flow of energy in an ecosystem?

• carnivore -> herbivore -> plant -> Sun

• plant -> herbivore -> carnivore -> Sun

• Sun -> carnivore -> herbivore -> plant

• Sun -> plant -> herbivore -> carnivore

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which statement about food chains must be correct?

• Producers are the final stage in a food chain.

• There are more producers than consumers in a food chain.

• There is only one type of herbivore in a food chain.

• The third member of a food chain is a herbivore.

Tags

NGSS.MS-LS2-3

The diagram shows a food web in woodland.

In this food web a beetle is a

• carnivore

• decomposer

• herbivore

• producer

Tags

NGSS.MS-LS2-3

The diagram shows part of a food web.

How many herbivores are shown?

• 3

• 4

• 5

• 6

Tags

NGSS.MS-LS2-2

The diagram shows a food web.

What is the principal energy input?

• carbohydrate

• heat

• light

• oxygen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The diagram shows a food web in a freshwater pond.

Which of the organisms is a producer, a herbivore or a carnivore?

• producer = 1

  herbivore = 6

  carnivore = 7

• producer = 2

  herbivore = 4

  carnivore = 5

• producer = 4

  herbivore = 2

  carnivore = 6

• producer = 7

  herbivore = 3

  carnivore = 8

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3