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.
Answer:
C. genes pass from parents to their offspring on chromosomes.
Answer:
E. ozone layer.
Explanation:
The pattern of temperature increase with height in the stratosphere is the result of solar heating as ultraviolet radiation in the wavelength range of 0.200 to 0.242 micrometre dissociates diatomic oxygen (O2).
Guessing it’s D. Hope this was helpful!