Answer:
A because proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues
Explanation:
The primary succession takes a long time to be done. the secondary succesion takes 200-500 years for completion. the secondary succession occurs in an area which has been denuded recently and lately inhabited. soil is present at the beginning of the secondary succession with some organisms. thank you for this question.
I dont know what the options are. just send the options and i can answer
Amino acids are the building block of protein !!!