Consumers are organisms that
a. eat only other animal species.
b. get solar or other energy indirectly.
c. are also known as self-feeders.
d. occupy an ecosystem's lowest energy level. ____ 35. the bacteria that live within the roots of a soybean plant are a critical part of the nitrogen cycle because they
a. provide the plant with sugars needed for growth.
b. transform nitrates into nitrogen gas for release.
c. change atmospheric nitrogen into a usable form.
d. release nitrogen by decomposing dead plant parts.