Answer:
Amino acid
Explanation:
Because Amino acids consist of an amino group (NH2) , carboxylic group (COOH) and radical (R).
It is d) to continue the species!!
hope this helps :)
<span>A::T and G:::C is essential. The importance to the DNA structure is that prevents lose of genes and mis-formation of encoded products (protein and mRNA).</span>
<span>All of the following patterns were witnessed by Darwin except that species vary within very short spans of time. Charles Darwin put forth a coherent theory of evolution and amassed a great body of evidence in support of this theory. By the 19th Century, a number of natural historians were beginning to think of evolutionary change as an explanation for patterns observed in nature.</span>
