Explain how capillary action is really just teamwork between adhesion and cohesion.

The red blood cells are cohesive, meaning they want to stick together. if one cell moves along the capillary this cohesion will drag the neighboring cell with it. the cells are also adhesive to the capillary walls, so they stick along the tube lining as they are dragged through the capillary.

velocity and height

i think that the best answer would be c.

tell me if im wrong : )