Answer:
Phenotype
Explanation:
"only four phenotypes result from the six possible ABO genotypes. How does this happen? To understand why this occurs, first note that the A and B alleles code for proteins that exist on the surface of red blood cells; in contrast, the third allele, O, codes for no protein."
Sorry if im wrong
Xylem cells<span> die as they </span>mature<span> while </span>phloem cells<span> are alive at maturity.</span>
That would be the ER (endoplasmic reticulum) and the Golgi apparatus.
