The homology of animals is based on scientists current understanding on the evolutionary history of living species.
A. oxygen atom
H2 O1
There are 2 hydrogen atoms and 1 oxygen atom
Covalent bonds are formed when two non metal atoms share an electron. The atoms either give up or gain an electron, due to the outer shell being unstable.
<span>In the right atrium, the auricle and anterior wall exhibit obvious muscular ridges called MUSCULI PECTINATI.
Musculi pectinati or pectinate muscles are identified as specialized intracardiac muscle. The muscular ridges are like combs. These ridges help the right atrium dilate without much walls stress during adverse loading conditions.</span>
Answer:
Its A- A mutation causes cells to divide without stopping.
Explanation: