Answer:
C
Explanation:
The helix has to unwind before separating. Once it's separated, then new bases can be added. Once the bases are added, the separate strands wind into helices.
Explanation:
I don't think your question is appropriate for me to answer.
1. Which structure of the excretory system in humans is responsible for converting ammonia into urea? - Liver is responsible for converting ammonia into urea.
2. Breathing in humans is driven by all of the following except
B. Air Pressure.
Hope I helped. Have a wonderful day.
ADP has two phosphate groups and ATP has three phosphate groups but they both have phosphate groups.
Answer;
The substance that can enter a cell by diffusion without having to be digested is water.
Explanation;
Diffusion involves the movement of molecules from a region of high concentration to a region of low concentration, down a concentration gradient.
Water is able to diffuse through the cell membrane without being digested since it has small molecules.
One property of cell membrane is semi-permeability; it selectively allows material to enter or leave the cell. Large molecules such as starch , fat and proteins, can not enter the cell due to their size and will need to be digested to small molecules for the to gain access to the cell.
