What assembles some components of the cell membrane modifies proteins has ribosomes attached to it?

How does a catalyst influence a chemical reaction?

1)some people believe that certain drugs such as marijuana should be legalized. do you agree or disagree? 2)what impact might legalization have on forensic science as a field? which drug presents the greatest challenges to forensic science? why?

Which animal receives the greatest amount of the original energy found in the producers