Answer:
C
Explanation:
The slave population increased rapidly as a result of the cotton gin.
Answer:
20 million
Explanation:
Representatives of Spain and the United States signed a peace treaty in Paris on December 10, 1898, which established the independence of Cuba, ceded Puerto Rico and Guam to the United States, and allowed the victorious power to purchase the Philippines Islands from Spain for $20 million.
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA.
<em>The main role of DNA in the cell is the long-term storage of information.</em>