What is the role of the dna polymerase in dna replication

Which of the following is most likely the result of an organism having lipids in its body a) water cannot be absorbed through the surface of a leaf b)human eats fruits to get a quick source of energy c) a sheep sleeps for more hours in the winter d) a warm river is filled with fish and algae

What are the four stages of cell signaling?

What characteristic makes a cell membrane selectively permeable