______ is defined as the total amount of energy fixed per unit of time minus the amount of energy expended by the metabolic activities of the photosynthetic organisms in the community.
A)Net primary productivity
B)Gross primary productivity
C)Carrying capacity
D)Net metabolism

Question

Quizplus · Accepted Answer

Net primary productivity is the total amount of energy fixed per unit of time by the photosynthetic organisms in a community after subtracting the amount of energy expended by their metabolic activities. This is a measure of the amount of energy available for the rest of the ecosystem, and is an important factor in determining the overall productivity and carrying capacity of the system. Gross primary productivity, on the other hand, is the total amount of energy fixed by photosynthesis without subtracting any energy expended by the organisms themselves, and does not take into account the amount of energy lost through respiration and other metabolic processes. Carrying capacity refers to the maximum number of organisms that can be supported by a given ecosystem, while net metabolism is a measure of the overall metabolic activity of the organisms in the system, and does not relate specifically to photosynthesis or productivity.

______ Is Defined as the Total Amount of Energy Fixed