Biology

Biology, 08.10.2019 12:30, Fangflora3

Why is an ecosystems net primary npp lower than its gross primary production gpp

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Biology, 16.07.2019 01:20, tadvet5685

Plants, algae, and cyanobacteria are primary producers upon which entire ecosystems are dependent. during photosynthesis, primary producers convert the carbon from inorganic carbon dioxide into organic compounds (glucose and other organic compounds). the amount of carbon that is processed during photosynthesis is referred to as gross primary production. net primary production, however, is always less than gross primary production. which of the following statements to explain this difference? a. only some of the carbon converted by the plant is used to create new biomass. b. plants utilize some of the incoming energy derived from photosynthesis for self-maintenance. c. plants and algae carry out cellular respiration, which requires biochemical energy produced during photosynthesis

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Biology, 17.07.2019 17:00, lolz55678

If a terrestrial ecosystem has a net primary production of 3000 j/m2 *yr and an ra of 2000, what is the gross primary production for this ecosystem? a. 100b. 500c. 1000d. 5000

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Geography, 24.07.2019 23:10, dondre54

Field experiments demonstrate that variation in soil fertility influences terrestrial primary production. however, we cannot say that nutrients exert primary control. that role is still attributed to temperature and moisture. why do ecologists still attribute the main control of terrestrial primary production to temperature and moisture? consider the difference in primary production between arctic tundra and tropical forest and the extent to which nutrient additions changed primary production in tundra. 4

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Biology, 30.07.2019 22:00, Jasten

Application of fertilizers to aquatic ecosystems stimulates primary production just as it does in agricultural ecosystems. in aquatic ecosystems, the enhanced production can eventually lead to:

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