SCIENCE
ECOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
net primary productivity.
|
|
|
secondary productivity.
|
|
|
primary productivity.
|
|
|
None of the above
|
Detailed explanation-1: -Net primary productivity, or NPP, is gross primary productivity minus the rate of energy loss to metabolism and maintenance. In other words, it’s the rate at which energy is stored as biomass by plants or other primary producers and made available to the consumers in the ecosystem.
Detailed explanation-2: -Net Primary Production (NPP) = GPP – RA The amount of organic carbon produced by plants that is not consumed by their own respiration. It is the increase in the plant biomass in the absence of herbivores.
Detailed explanation-3: -The amount of energy fixed by autotrophs is known as primary production, and the rate of fixation is primary productivity.
Detailed explanation-4: -Primary productivity is the rate at which biomass is produced by organisms that convert inorganic substrates into complex organic substances. Primary production typically occurs through photosynthesis; when green plants convert solar energy, carbon dioxide, and water to glucose, and eventually to plant tissue.