Probably B would be the right answer
Genetic drift I believe because it means <span>variation in the relative frequency of different genotypes in a
small population, owing to the chance disappearance of particular genes
as individuals die or do not reproduce.</span>
The primary structure of a protein refers to the sequence of amino acids in the polypeptide chain. The primary structure is held together by peptide bonds that are made during the process of protein biosynthesis. Hope this helped :)
Answer:
1.a ,Organism
18. Biosphere
19.b,ecosystem
31.a,Has a high heat capacity and therefore helps maintain a constant body temperature
46.c,repair tissue
49.d,all of the above
7.d,All atoms of an element contain the same number of protons
