B. The flower color in a population changes over time.
Prokaryotic And Eukaryotic :)
D. In a structure of the female reproductive system.
About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water. But water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog.
