<span>A: Some energy will be used to do work and some will be lost as heat.</span>
Water is polar and the positive and negative ends of the molecule attract each other.
At that time, plate tectonic movements shoved all of the continents into one big super continent. After that time, plate movements started to break up this super continent until the continents eventually reached their present configuration.
It's some change in the conditions around the organism, which the organism can detect and respond to. A change in temperature, more light, or something physically poking the organism are examples.
