In all ecosystems, heterotrophs are completely dependent on the productivity of all the following groups of organisms EXCEPT:
A)animals.
B)autotrophs.
C)photosynthetic bacteria.
D)plants.
E)algae

Question

Quizplus · Accepted Answer

Heterotrophs rely on autotrophs, photosynthetic bacteria, plants, and algae for energy, as these groups produce organic matter through photosynthesis. Animals, however, are also heterotrophs and do not produce their own food, so heterotrophs are not dependent on them for primary productivity.

In All Ecosystems, Heterotrophs Are Completely Dependent on the Productivity