I NEED HELP PLEASE! I WILL NAME U THE BRAINLIEST! The sodium-potassium pump:
A. uses energy to move sodium ions out of the cell and potassium ions into the cell.

B. uses energy to move potassium ions out of the cell and sodium ions into the cell.

C. moves sodium ions out of the cell and potassium ions into the cell without using energy.

D. moves potassium ions out of the cell and sodium ions into the cell without using energy.

PLEASE EXPLAIN!
Explanation:

Which best describes how parents affect the genotype of a child? a.the parents decide what to feed their child b.the parents choose whether to educate their child c.the parents allow their child to stay up late d. the parents pass along genes to the child

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.

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water