There are more than simply 4 biological compounds in the human body. I suppose to categorise, the question is hinting towards the molecules like Carbohydrates ( Poly and mono saccharides ) Proteins ( Polypeptides Made of amino acids) and Fats. There is also water, but I'm hesitant to class that as a biological compound, as it's not organic.
An example i can think of is...
the amount of salt present in human cells cytoplasm suggests we evolved from species in the sea
The best answer would be enzymes since they are protein molecules and help build it. Enzymes also take part in reaction.
Forceps, they literally are almost the exact same thing.
ANSWER: i think it’s D
i’m not sure i hope i helped
i’m so sorry if i’m wrong
