Cell specialization allows cells to perform essential cell specific tasks. Such as nerve cells, red blood cells etc.
The<span> duodenum is the first segment of the small intestine</span>
The part of an atom that is mostly empty space is the electron cloud
Blood groups are inherited from both parents. The ABO blood type is controlled by a single gene (the ABO gene) with three types of alleles inferred from classical genetics: i, IA, and IB. The I designation stands for isoagglutinogen, another term for antigen.