7.12 Energy Flow

A Texas Gulf Coast food web is shown. Select all that apply

• Raccoon

• Sparrow

• Eastern cottontail rabbit

• Seeds

Tags

NGSS.MS-LS2-1

Which statement best describes the flow of energy through this

pyramid?

• The trophic level represented by catfish and gobies receives

  energy directly from the producers.

• The trophic level represented by shrimp and copepods receives

  energy directly from the tertiary consumers.

• The trophic level represented by redfish and flounder receives

  energy directly from the secondary consumers.

• The trophic level represented by wire grass and phytoplankton

  receives energy directly from the primary consumers.

Tags

NGSS.MS-LS2-3

Answer the following question

• F

• G

• H

• J

Tags

NGSS.MS-LS2-4

What is the primary role of decomposers in maintaining the LAW OF CONSERVATION OF MASS AND ENERGY in ecosystems?

• They convert sunlight into chemical energy

• They break down dead organisms and return nutrients to the environment

• They produce oxygen through photosynthesis

• They consume other organisms for energy

Tags

NGSS.MS-LS2-3

Which statement best describes the flow of energy in an ecosystem?

• Energy flows in circles, being reused indefinitely

• Energy moves in one direction and is eventually lost as heat

• Energy is created by plants during photosynthesis

• Energy remains constant within organisms

Tags

NGSS.MS-LS2-3

How does the law of conservation of mass apply to ecosystems?

• Mass will be created or destroyed within the ecosystem

• Mass only flows from producers to consumers

• The total amount of matter stays constant as it cycles through the ecosystem

• Mass increases over time as organisms grow

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

A diagram is provided. Which of the following correctly shows one way that energy would flow through this ecosystem?

• A

• B

• C

• D

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

A labeled energy pyramid is provided. At which level would you find the least amount of energy available?

• A

• B

• C

• D

Tags

NGSS.MS-LS2-3

The following diagram shows the energy flow in an ocean ecosystem. Which organisms would be directly affected by a decrease in the krill population? Select TWO responses.

​ ​

• A
• B

• C

• D

• E

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Alejandra studied a rain forest ecosystem. She made the following data table of some of the organisms that live in a rain forest.

• A

• B

• C

• D

Tags

NGSS.MS-LS2-3