Which of the following does NOT cycle through an ecosystem?
A) water
B) carbon
C) energy
D) phosphorus
E) nitrogen

Question

Quizplus · Accepted Answer

Energy is not recycled in an ecosystem, but rather flows continually through it. It enters the ecosystem as sunlight and is converted into chemical energy by autotrophs, and then passed along to heterotrophs through the food chain. However, once it is used by an organism, it is lost as heat and not recycled. Water, carbon, phosphorus, and nitrogen all cycle through the ecosystem in various forms.

Which of the Following Does NOT Cycle Through an Ecosystem