Answer:
Avian fowl pox vaccination I think
Explanation:
Peripheral perfusion has to do with <span>the delivery of blood to peripheral tissues, that is, in the extremities of the body, such as feet and hands. </span>
I would have to say b not sure if that right or not let me now
They can constrict or dilate because their walls are muscular.
Answer:
Sorry I don't understand the question nicely.