<span>The impulsive mechanism described by Freud is known as the Id. According Freud, the id is the unconscious part of the human mind that wanted to be satisfaction that holds hidden instincts and desire for action. He said that for some people this is not suppressed and are controlled by their Id. This shows their negative behavior without any sense of undertanding right decisions. </span>
Mechanical energy turns into kinetic
The second part I know:
cell size is limited beacuse when it gets too big it succumbs to gravity. Gravity will start to affect the cell more than surface tension of water. Similar to why bugs can't get much bigger than they are, cuz of gravity and surface tension.
248 years to go around one time