Quiz about Cycling of Matter in Ecosystems

Question 1

This is an image of a what?

Accepted Answer

Food web

Answer

Food Chain

Answer

Life Cycle

Answer

Life Chain

Question 2

According to the image

Accepted Answer

The fox is getting energy from the rabbit

Answer

The rabbit is getting energy from the fox

Answer

The grass is getting energy from the rabbit

Question 3

A decomposer in an ecosystem gets its energy by:

Accepted Answer

breaking down dead organisms

Answer

consuming, or eating, other organisms

Answer

drinking water

Answer

using the sun to make its own energy

Question 4

The arrows in a food web show the direction...

Accepted Answer

matter or energy are flowing

Answer

water is flowing

Answer

organisms are moving in

Answer

consumers are moving in

Question 5

How does matter move among the living and nonliving parts of an ecosystem?

Accepted Answer

matter is recycled within and between ecosystems

Answer

one-way flow of energy

Answer

two-way flow of energy only

Answer

three-way flow of energy only

Question 6

What role do decomposers play in the phosphorous cycle?

Accepted Answer

return phosphorous into the soil

Answer

absorb phosphorous

Answer

release phosphorous into atmosphere

Answer

combustion

Question 7

If photosynthesis and cellular respiration keep CO2 and O2 stable in the atmosphere, what could cause a man made imbalance?

Accepted Answer

Use of fossil fuels

Answer

Increase in photosynthesis

Answer

Increase in cellular respiration

Answer

Decrease in photosynthesis

Question 8

The diagram shows the flow of organic molecules through an ecosystem. One process that occurs in this ecosystem is labeled X, and another that occurs is labeled Y.

Which two processes are identified as X and Y?

Accepted Answer

X: decomposition

Y: respiration

Answer

X: respiration

Y: predation

Answer

X: adaptation

Y: decomposition

Answer

X: fermentation

Y: nitrogen fixation

Question 9

This is an image of a what?

Accepted Answer

Food chain

Answer

Food web

Answer

Life cycle

Answer

Life chain

Question 10

decomposers

Accepted Answer

break down organism into small pieces that go back to the soil as nutrients and minerals.

Answer

produce their own food

Answer

consume other organisms like plants and animals for food

Question 11

Producers

Accepted Answer

create their own food.

Answer

break down organisms into small pieces that go back to the ground as minerals and nutrients.

Answer

consume plants or animals to get food.

Question 12

A producer in an ecosystem gets its energy by:

Accepted Answer

using the sun to make its own energy

Answer

consuming, or eating, other organisms

Answer

breaking down dead organisms

Answer

drinking water

Question 13

During the Carbon Cycle...

Accepted Answer

all of the above.

Answer

carbon is stored in the soil.

Answer

carbon is stored in plants.

Answer

carbon is stored in the atmosphere.

Question 14

Which of the following is NOT true about systems that cycle matter?

Accepted Answer

Some matter is destroyed as it cycles through the environment.

Answer

Living things play a role in the cycling of matter.

Answer

Matter is not created as it cycles through the environment.

Answer

Matter is constantly cycling through the environment.

Question 15

This image shows the _________ cycle.

Accepted Answer

Nitrogen

Answer

Carbon

Answer

Oxygen

Answer

Water

Question 16

What is the function of bacteria in the Nitrogen Cycle?

Accepted Answer

They return nitrogen to the system.

Answer

They prevent nitrogen from harming the plants.

Answer

They remove nitrogen from the soil.

Answer

They remove oxygen from the soil.

Question 17

The Law of Conservation of Mass (Matter)

Accepted Answer

Matter con not be created or destroyed.

Answer

Do not use too much mass.

Answer

Energy flows through an ecosystem.

Answer

Matter moves through an ecosystem.

Question 18

Precipitation is...

Accepted Answer

water that falls from clouds.

Answer

water that changes from a gas to a liquid.

Answer

water that changes from a liquid to a gas.

Answer

water that goes up to the atmosphere.

Question 19

One of the benefits of photosynthesis is that it creates more _________ for the atmosphere.

Accepted Answer

oxygen

Answer

carbon

Answer

nitrogen

Answer

water

Question 20

Which of the following processes is primarily responsible for the cycling of carbon in ecosystems?

Accepted Answer

Photosynthesis and respiration

Answer

Evaporation and condensation

Answer

Precipitation and runoff

Answer

Erosion and sedimentation

Question 21

In the nitrogen cycle, what is the role of nitrogen-fixing bacteria?

Accepted Answer

Convert nitrogen gas into ammonia

Answer

Convert ammonia into nitrogen gas

Answer

Decompose organic matter

Answer

Absorb nitrogen from the soil

Question 22

What is the primary source of energy that drives the water cycle in ecosystems?

Accepted Answer

Sunlight

Answer

Wind

Answer

Geothermal heat

Answer

Tidal forces

Question 23

Which of the following best describes the role of decomposers in the cycling of matter?

Accepted Answer

They break down dead organisms and recycle nutrients

Answer

They produce energy from sunlight

Answer

They convert inorganic matter into organic matter

Answer

They fix atmospheric nitrogen into the soil

Question 24

How does deforestation affect the carbon cycle?

Accepted Answer

Increases carbon dioxide in the atmosphere

Answer

Increases carbon storage in trees

Answer

Decreases carbon dioxide in the atmosphere

Answer

Has no effect on the carbon cycle

Question 25

Which of the following is a real-world application of understanding the cycling of matter in ecosystems?

Accepted Answer

Developing sustainable agricultural practices

Answer

Designing more efficient engines

Answer

Improving weather forecasting

Answer

Creating new synthetic materials

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