Unit 8.2 Matter Cycles Through Ecosystems

Open Ended

Compare and contrast how energy and matter move through ecosystems.

Multiple Choice

Which statement is false about the carbon cycle?

• Human combustion of fossil fuels has had no effect on the carbon cycle.

• Sedimentation brings carbon to the bottom of the ocean.

• Photosynthesis and respiration are approximately equal in their movement of carbon.

• Exchange is the movement of carbon between the water and the air.