18. Which Statement Concerning An Ecosystem Is Correct?, A. It Can Exist With Or Without A Constant

18. Which statement concerning an ecosystem is correct?

A. It can exist with or without a constant source of energy input.
B. It involves interactions between biotic and abiotic factors.
C. It can exist on land, but it cannot exist in lakes, rivers, or oceans.
D. It must contain consumers but can exist without producers.

 

Answer:

B. It involves interactions between biotic and abiotic factors.

Explanation:

hope it helps po.