Primary production is ... a) a product of activities of heterotrophs b) total amount of energy fixed by all autotrophs in an ecosystem c) the fixation of energy by autotrophs d) the biomass of herbivores ( from consuming plants) e) none of the above 2.
(Primary production; is; a) a product of activities of heterotrophs b) total amount of energy fixed by all autotrophs in an ecosystem) (energy; fixed; by all autotrophs)
Primary production energy
is fixed
a) a product of activities of heterotrophs b) total amount of energy fixed by all autotrophs in an ecosystem
by all autotrophs