DNA is a long polymer with deoxyriboses and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine. RNA is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cytosine, and uracil.
Ecosystems have a big role in the reason why different populations are able to live in the same community. Also tourist attractions, etc etc
Answer:
C
Explanation:
Second law states that conversion of energy is not 100percent efficient, some are lost as heat energy
