Why does adding sodium citrate to blood stop it from coagulation and how does it make blood easier to store

Which class of organic compounds makes up the channels and pumps that move materials from one side of the cell membrane to the other? a.) carbohydrates b.) lipids c.) proteins d.) nucleic acids

What is a sex-linked genetic disorder that disrupts the blood's ability to clot? a.achondroplasia b.huntington's disease c.hemophilia d.albinism

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous