<span>Gregor Mendel used peas to conduct his experiments in genetics. He showed how different alleles gathered from each of the parents, when combined, would reemerge as various characteristics in the offspring.</span>
Answer: Primary
Explanation: The primary level of protein structure explains the sequence of amino acid linked together by peptide bonds to form polypeptide chains . A slight change in the amino acid sequence of Hemoglobin can alter hemoglobin function.
The primary level of protein structure is essential in the function of the protein any alteration in the amino acid sequence can disrupt the function of the protein.
Answer:
sugar moves into cell A by diffusion
sugar moves into cell B by Active transport
The answer is B. Natural Selection