Discuss the “active” cell transport mechanisms responsible for movement of some molecules across the cell membrane.

Asap! how does the distance between two objects affect the force of gravity? how is the moon dependent on the sun?

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions,because prokaryotes don't have nuclei.