Rhizobium Bacteria Live in Root Nodules and

Multiple Choice

Rhizobium bacteria live in root nodules and

A) fix atmospheric nitrogen to NH⁴⁺ to build organic compounds.
B) fix carbon dioxide so that the carbon may be used to build glucose.
C) increase the surface area,thereby increasing the water absorbing capacity of the plant's roots.
D) All of the answer choices are correct.