Answer:
that b one is nucleus dont know about the a one
The answer would be D.
HWE states that genotype and allele frequencies in a population remain constant from generation to generation when evolutionary influences are absent(such as gene flow or natural selection).
I would say read some class work, then find a video on YouTube explaining it
Answer
the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.