In an ecosystem,the amount of organic matter produced in a given time that is available for heterotrophs is known as
A)daily yield.
B)gross primary productivity.
C)net primary productivity.
D)effective vitality.
E)net yield.

Question

Quizplus · Accepted Answer

Net primary productivity is the amount of organic matter produced by autotrophs in a given time period that is available for consumption by heterotrophs. This represents the energy that is available to be transferred up the food chain. Gross primary productivity represents the total amount of organic matter produced by autotrophs, including what is used in their own respiration, while net primary productivity accounts for only the portion that is available for consumption by other organisms. Therefore, choice C is the correct answer.

In an Ecosystem,the Amount of Organic Matter Produced in a Given