Question

Question 9

Directions: The diagram below models part of the phosphorus cycle. Use the diagram to answer any questions that follow.

Phosphorus in animals

M

N

Phosphorus in soil

Phosphorus in silt at the bottom of bodies of water

Phosphorus trapped in uplifted solid rock

How is phosphorus transferred between animals and soil at N?

Oa When heavy winds blow, it is eroded off of living things.

Ob Consumers exhale it as a gas that is fixed by bacteria in the soil.

Oc Decomposers break it down from wastes and dead animals.

Od When animals move, it is released into the soil,

Answer 1

breaking down organic matter.

The correct answer is:

Oc Decomposers break it down from wastes and dead animals.