The answer is to this question is A
Answer:cell division
Explanation:where the diploid nucleus duplicates it’s genet material and divides into two; each containing a set of identical chromosomes identical to the original
<span>As stated in the given, chlorine ion is formed when the neutral atom which only has seven electrons in its valence shell, accepts additional electron. The nature therefore of a chlorine ion apart from being negatively charged is that it will take electron from the bonds or share electron when covalent bonding is done. </span>
Amino acids are the build block of proteins so its D.
These stem cells come from embryos that are three to five days old. At this stage, an embryo is called a blastocyst and has about 150 cells. These are pluripotent (ploo-RIP-uh-tunt) stem cells, meaning they can divide into more stem cells or can become any type of cell in the body.