Answer:
A number of complement proteins are proteases that are themselves ... factor D has no other substrate than factor B when bound to C3b. This means that factor
Explanation:
Answer:
true
Explanation:
a virus needs a host to replicate its like fleas they lay eggs on dogs to replicate
Muscle tissue is responsible for both voluntary and involuntary movements.
Answer:
molecule
Explanation:
because water aka h20 is a molecule
