The net weight of all of the organisms living in an ecosystem is its
A)productivity.
B)biomass.
C)vital force.
D)photosynthesis minus metabolism.
E)combined output of metabolism and photosynthesis.

Question

Quizplus · Accepted Answer

Biomass refers to the total weight of all organisms living in an ecosystem, making it the best choice for this question. Productivity refers to the rate of production of organic matter by photosynthesis, while vital force is not a commonly used term in ecology. Photosynthesis minus metabolism and combined output of metabolism and photosynthesis do not accurately describe the net weight of organisms in an ecosystem.

The Net Weight of All of the Organisms Living in an Ecosystem