Which of the Following is an Accurate Definition of Primary

Question

Which of the following is an accurate definition of primary productivity?
A) The rate at which a standing crop is produced or the volume at which plants photosynthesize.
B) The rate at which biomass is produced per unit area or volume through photosynthesis
C) The formation of essential plant structures
D) The rate of formation of essential plant structures over a photosynthetic period.

Accepted Answer

Primary productivity is defined as the rate at which biomass is produced per unit area or volume through photosynthesis. This refers to the amount of organic matter that plants produce through the process of photosynthesis. Option A is incorrect because standing crop refers to the amount of organic matter that is present at any given time, whereas primary productivity is concerned with the rate of production. Option C and D are incorrect as they do not accurately describe primary productivity.