In the abo blood group, need to be matched. it is important that the in the plasma do not react with the rbcs. if an incorrect match is made, rbcs become agglutinated. this clumping will occur in the recipient's plasma and will affect blood flow to vital organs.

How is the male reproductive system different from other body systems? it isn’t necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected

What controls activities within a eukaryotic cell?