Answer:
B. The DNA replicates.
Explanation:
Activity in the chromosomes must occur before the beginning of mitosis. The cells will enter the S1 phase in preparation to divide.
I. The climate of a place affects the migration of migration of people
Answer: C. Prevailing winds
Explanation:
Several factors influence the direction of the sea current, and the prevailing wind is one of them. Surface winds are certainly one of the most critical factors affecting the direction of movement. In addition to this factor, the evolution of the sea current is also influenced by the earth's rotation, temperature, the attractive force of the moon and river flows.
Answer:

aka Ethenone
Explanation:
Ethenone is an organic compound made out of the elements Carbon, Hydrogen, and Oxygen. It is an example of a covalent molecule. The Hydrogens are single bonded to the carbon and then the carbons and oxygen are double-bonded to each other. Additionally, because there are 2 Hydrogens and 1 Oxygen the ratio is 2:1, as stated in the question.