ECOLOGY
BIOMES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The rate at which primary producers undergo photosynthesis.
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The amount of organic matter (biomass) that remains after primary producers use some to carry out cellular respiration.
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Average conditions, including temperature and precipitation, over long periods of time in a given area.
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Day-to-day conditions in Earth’s atmosphere.
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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: -Primary productivity is the process resulting from photosynthetic activity of the plants and determines biomass accumulation in forests. Net primary productivity (NPP) represents the difference between gross photosynthesis of plant foliage and energy losses due to respiration and mortality of plant tissues.
Detailed explanation-3: -Definition. The amount of carbon retained in an ecosystem (increase in biomass); it is equal to the difference between the amount of carbon produced through photosynthesis (GPP) and the amount of energy that is used for respiration (R). Source. Glossary.
Detailed explanation-4: -Primary production is the creation of new organic matter by plants and other autotrophs. It can be described per unit area for individual ecosystems or worldwide. Production also is a rate, measured per time unit, while standing crop biomass is the amount of plant matter at a given point in time.
Detailed explanation-5: -NPP (Net Primary Productivity) is highest for tropical forests. Net primary productivity is a measure of the annual productivity of the plants in the biosphere. Net primary productivity provides the energy for all heterotrophic activity. It includes: The new biomass produced by plants.