Answer:
I would go with B:
The body must maintain homeostasis so that the internal environment stays the same if the outside
Lets consider the water drop as being part of the water in a lake. The water droplet evaporates and changes from a liquid state to a vapor state by gaining energy and travels up to the upper atmosphere. In the atmosphere the water droplet once again condenses in the clouds and is stored until it can be precipitated on to the land again in the form of rain or other forms of precipitation.
They don't need to be near water for reproductive purposes!
B, the discovery of new evidence resulted in changes to the cell theory,
