The ionization of a sodium atom to produce $Na^+$ is an example of:

Assertion $A$: Many molecules participate in biochemical reactions.
Reason $R$: Biochemical reactions are metabolic reactions.
Which option is correct for Assertion $A$ and Reason $R$?

Which of the following processes occurs during metabolism?

In living organisms,complex traits are .......

In living organisms,complex traits are the result of:

In every cell of a living organism,......... processes are constantly occurring.