C scientific law is something that's always going to be true
Explanation:
because at is formed,the lighter part floats on the surface and the really heavy part (like iron and nickel in the core)sank to the middle
Answer:
Hey!
Here's why its important:-
When a foreign antigen reaches one’s blood, it stimulates the defense mechanism. On receiving unmatching blood, the antigen present in the donor's blood and the antibody present in the recipient's blood will react with each other and form a blood clot. Hence, everyone cannot receive blood from all blood groups.
They transport amino acids
