Much like a thermostat regulates the temperature inside your home the hypothalamus regulates your body temperature. (hopefully that'll help a little. all i could find)
A the flowering of the four oclock plant at the same time
You can conclude that the father was either heterozygous for that trait or fully homozygous.
It is true that cells spend most of their time dividing. In fact, they spend 78% of their "life" in interphase.
