Which veins lead directly back into the superior and inferior vena cava?

Anormal appearing couple is found to be heterozygous recessive for albinism both have the genotype aa the gene responsible for albinism is recessive to the normal pigment-producing gene what are the changes of their children being albino

_is a product of the first stage of photosynthesis.atpglucosecarbon dioxidewater

Which structure in the cardiovascular system connect arteries to veins?