Cycling of Matter & Conservation of Matter Review

Organisms that use energy from the Sun to turn carbon dioxide and

water into glucose, or sugar and oxygen are called

• matter

• producers

• decomposers

• consumers

• food chain

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

...get their energy from breaking down dead matter.

• matter

• producers

• decomposers

• consumers

• food chain

Tags

NGSS.MS-LS2-3

Organisms that eat other living things are called...

• matter

• producers

• decomposers

• consumers

• food chain

Label this food chain

c

d

b

e

a

primary consumer

secondary consumer

sun

decomposer

producer

Tags

NGSS.MS-LS2-3

Which organism gets its energy directly from the Sun?

• frog

• plant

• snake

• cricket

Tags

NGSS.MS-LS1-6

Which of these accurately represents a food chain?

• sunlight → spider monkey → red cocoa fruit → jaguar

• sunlight → red cocoa fruit → spider monkey → jaguar

• jaguar → sunlight → red coca fruit → spider monkey

• red cocoa fruit → jaguar → spider monkey → sunlight

Tags

NGSS.MS-LS2-3

Jaden states that animals do not depend on energy from the Sun for food. How would you respond to this statement?

• I would agree with Jaden because animals do not make their own food through photosynthesis.

• I would agree with Jaden because animals eat other organisms to get energy.

• I would disagree with Jaden because animals either eat plants or other animals that eat plants.

• I would disagree with Jaden because animals sun themselves to help keep their bodies warm.

Tags

NGSS.MS-LS2-3

The corn snake is a secondary consumer that feeds on small mice. The mice eat small seeds from a plant.

Which is the correct order of steps for how a corn snake gets its energy?

• The snake eats the mouse. The seeds are made by a plant. The mouse eats seeds.

• The snake eats the mouse. The plant makes the seeds. The mouse receives energy from the sun.

• The plant makes food from energy received from the sun. The snake eats the mouse. The seeds are made by the snake for the mouse to eat.

• The plant receives energy from the sun. The plant makes the seeds. The mouse eats the seeds. The snake eats the mouse.

Tags

NGSS.MS-LS2-3

What impact do decomposers have on the movement of matter through the ecosystem?

• They make their own food by using energy from the Sun.

• They eat other animals to get their energy they need to survive.

• They survive by eating only the plant matter that uses the Sun to make energy.

• They recycle nutrients into the soil so that other organisms can use them to grow.

Tags

NGSS.MS-LS2-3

In 2000, a biologist studied a forest ecosystem and counted the number of plants, rabbits, snakes, and eagles living there. After this, a group of hawks were introduced into the ecosystem. In 2020, the biologist returned and counted the organisms again. The double bar graph shows the results.

What is the best explanation for why the number of eagles in the ecosystem decreased?

• The hawks competed with the eagles for food.

• The hawks hunted the eagles for food.

• The hawks brought pollution, which poisoned the eagles.

• The hawks destroyed the trees where the eagles had lived.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-2