Question

Primary productivity is defined as(1 point)

the rate that plants and other photosynthetic organisms produce organic compounds.

the process where green plants and some other organisms convert light energy into chemical energy using carbon dioxide and water.

the adjusted amount of energy in an ecosystem due to energy use by organisms for respiration.

the overall amount of energy captured by plants and other photosynthetic organisms by the chloroplast.

Answer 1

Correct answer: the rate that plants and other photosynthetic organisms produce organic compounds.

Explanation: Primary productivity is the rate at which autotrophs (photosynthetic or chemosynthetic organisms) produce organic matter (biomass). (Net primary productivity = gross primary productivity minus autotrophic respiration.)