A. glucose is the building block
Oxygen's valence, based on the Number of valence electrons or outermost electrons that oxygen has would be 6.
<span>50 percent. Newborn has very low listening ability and learning as brain develops the child will learn new things and his brain starts to grow big .Brain will adapt the language,color ,light,people faces and then child will learn fast</span>
The endosymbiosis explains how eukaryotic cells may have evolved from prokaryotic cells.