CFA 4.3 Matter and Energy in Ecosystems Review

In a closed ecosystem, if there is more sunlight then

• there will be more photosynthesis.

• there will be less photosynthesis.

• there will be more abiotic carbon (CO₂) in the air.

• there will be less abiotic carbon (CO₂) in the air.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

If the sun is shining through a biodome (air, plants, animals, and decomposers) in a closed ecosystem

• only photosynthesis is occurring.

• only cellular respiration is occurring.

• both photosynthesis and cellular respiration are occurring.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A tank of water is filled with fish, algae, water plants, snails, and bacteria. The tank is a closed ecosystem. If light is shining into the tank, then

• energy storage molecules will increase.

• energy storage molecules will decrease.

• energy storage molecules will stay the same.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A tank of water is filled with fish, algae, water plants, snails, and bacteria. The tank is a closed ecosystem. If light is shining into the tank, then

• carbon will move into the water only.

• carbon will move out of the water only.

• carbon will move into the water and out of the water at the same time.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A tank of water is filled with fish, algae, water plants, snails, and bacteria. The tank is a closed ecosystem. If the tank is covered so that no light enters it then

• energy storage molecules will increase.

• energy storage molecules will decrease.

• energy storage molecules will stay the same.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A tank of water is filled with fish, algae, water plants, snails, and bacteria. The tank is a closed ecosystem. If the tank is covered so that no light enters it then

• abiotic carbon in the water will increase.

• abiotic carbon in the water will decrease.

• abiotic carbon in the water will stay the same.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What process moves abiotic carbon (CO₂) into biotic carbon (energy storage molecules) in an ecosystem?

• photosynthesis

• cellular respiration

• both photosynthesis and cellular respiration

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What process moves biotic carbon (energy storage molecules) into abiotic carbon (CO₂) in an ecosystem?

• photosynthesis

• cellular respiration

• both photosynthesis and cellular respiration

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

On a sunny day, a cow is eating grass in a field. Is carbon moving into the air, moving out of the air, or both?

• Carbon is not moving into the air; it is only moving out of the air.

• Carbon is only moving into the air; it is not moving out of the air.

• Carbon is moving into the air and out of the air at the same time.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

At night a cow is standing in a field of grass. Is carbon moving into the air, moving out of the air, or both?

• Carbon is not moving into the air; it is only moving out of the air.

• Carbon is only moving into the air; it is not moving out of the air.

• Carbon is moving into the air and out of the air at the same time.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3