Secondary consumers get their nitrogen and phosphorus from the remains (decayed bodies) of living organisms.
When plants and animals die and decay, microorganisms feed on their dead bodies, the activities of microorganisms (such as bacteria) on the remains of living organisms leads to the production of nitrogen and phosphorus for secondary consumers.
Therefore, the source of nitrogen and phosphorus for secondary producers is the remains of living things(e.g plants and animals).
The answer is not a because all RNA contains ribose. The answer is not c because all RNA contains uricil And the answer is not D because all RNA is single-stranded. Therefore the answer is B
