A person with type (AB) blood is crossed with a person with type O (OO) blood. What is the correct phenotype?

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

Name the organs of humanelemintary canal.

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?