Answer:
to appreciate what you have when you do have it
Explanation:
Answer:
Maintaining constant water and salt concentration (osmoregulation), keeping a constant temperature of the body and excreting waste substances.
Answer:
cell nucleus has the most DNA
Explanation:
A steady supply of energy is needed by cells for all body functions. Carbohydrates, proteins, and lipids provide this energy. Chemical bonds in molecules of these nutrients contain energy
Answer:
yes
Explanation:
The sugar-phosphate backbone forms the structural framework of nucleic acids, including DNA and RNA. This backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.