Which of the following best describes the net primary productivity of an ecosystem?

The Elements of Life

In biology, the elements of life are the essential building blocks that make up living things. They are carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur. The first four of these are the most important, as they are used to construct the molecules that are necessary to make up living cells. These elements form the basic building blocks of the major macromolecules of life, including carbohydrates, lipids, nucleic acids and proteins. Carbon is an important element for all living organisms, as it is used to construct the basic building blocks of life, such as carbohydrates, lipids, and nucleic acids. Even the cell membranes are made of proteins. Carbon is also used to construct the energy-rich molecules adenosine triphosphate (ATP) and guanosine triphosphate (GTP). Hydrogen is used to construct the molecules water and organic compounds with carbon. Hydrogen is also used to construct ATP and GTP. Nitrogen is used to construct the basic building blocks of life, such as amino acids, nucleic acids, and proteins. It is also used to construct ATP and GTP. Oxygen is used to construct the basic building blocks of life, such as carbohydrates, lipids, and nucleic acids. It is also used to construct ATP and GTP. Phosphorus is used to construct the basic building blocks of life, such as carbohydrates, lipids, and nucleic acids.

14] Which of the following best describes the net primary productivity of an ecosystem?a.Net primary productivity is the amount of energy captured by producers through photosynthesisover time.b.Net primary productivity is the amount of energy lost by producers through respiration overtime.c.Net primary productivity is the amount of energy lost through respiration by producerssubtracted from the gross primary productivity of an ecosystem.d.Net primary productivity is the amount of energy lost through respiration by producers added tothe gross primary productivity of an ecosystem.

15] Scientists calculated the net primary productivity at two different forest sites. Both forests have thesame gross primary productivity. Forest A has a net primary productivity of 2,567kcal/m2/year, andforest B has a net primary productivity of 3,278kcal/m2/year.Which of the following statements is best supported by the data?

16] Of the following organisms, which occupies the lowest trophic level?

17] Algae in an aquatic food chain convert solar energy into 93,000 kilocalories of plant tissue.Which of the following values best represents the amount of energy available for secondary consumersin the food chain?

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Open oceans produce the largest share of Earth's biomass because the net primary productivity (NPP) of the oceans is

A
high and thus can support a high proportion of producers

B
high as a result of the high concentration of nutrients in the open oceans

C
low, but the large expanse of the oceans supports enormous numbers of producers such as phytoplankton

D
low, but the individual producers found there are huge in size

E
low, but still higher than that of other ecosystems of the world

What is the net primary productivity of an ecosystem?

Which of the following is the best definition of net primary productivity?

What is net primary productivity quizlet?

What is the definition of net primary production?