Cell membranes are made up partly of fats. what type of macromolecules are fats?
a.)lipids
b.)carbohydrates
c.)nucleic acids
d.)proteins

the answer to your question is:

c. complementary base-pairing

helicase, i think thats it

you should wear a lead protective shield when having teeth x-rays

hope i

-lavira : )

thats not a question