Answer:
net primary production
Step-by-step explanation:
In ecology, primary production is called the synthesis of organic matter from inorganic compounds. This synthesis is performed by autotrophic organisms, such as plants in the terrestrial environment and phytoplankton, microfitobents, macroalgae, marine grasses, some bacteria and archaebacteria in the aquatic environment. Primary production can be classified as gross or net.
Gross primary production is the total amount of organic matter produced by an autotrophic organism; On the other hand, net primary production corresponds to gross primary production minus the organic matter consumed by the autotrophic organism itself in respiration. An example of net primary production is the amount of food potentially available to herbivores, shown in the question above.