Question

Primary productivity is defined as(1 point)
Responses

the adjusted amount of energy in an ecosystem due to energy use by organisms for respiration.
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.
the overall amount of energy captured by plants and other photosynthetic organisms by the chloroplast.

the rate that plants and other photosynthetic organisms produce organic compounds.
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 process where green plants and some other organisms convert light energy into chemical energy using carbon dioxide and water.

Answer 1

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

(Primary productivity is a rate — usually expressed as energy or biomass per area per time. Gross primary productivity (GPP) is total production; net primary productivity (NPP) = GPP − respiration.)