The answer is A
RNA is always single strand
Answer:
glacial till
Explanation:
hope that helps you out mate!! good luck!!
I believe that the best answer for this question is "gene mutations." Gene mutations can either take place through nucleotide substitutions, which occur when the the sequence of nucleotides are altered. Frameshift mutations can also occur. They involve the insertion or deletion of a DNA molecule's bases. Hope this helps.
The rhythmic contractions of the stomach and food along the alimentary canal is called peristalsis
