All of following processes occur in ecosystems except that?

Question

A. the energy source that powers the system is used by consumers to make organic compounds

B. energy flows through the system

C. carbon is cycles between biotic and abiotic forms

D nitrogen is cycled between biotic and abiotic forms

E. Producers convert light to energy to chemical energy

Answer 1

I think the answer is a>, because consumers don't make organic compounds, they instead break them.

P.s. not very sure :(

Answer 2

im pretty sure its D, since nitrogen itself is inaccessible to most living organisms, and it needs bacteria to fixate it, forming nitrates like ammonia, which is something that plants can use.

edit**

now that i think about it, the person below me is right it think.