Answer:
Humans maintain a body temperature of 37oC; .
If the temperature is above or below 37oC, the hypothalamus receives information from thermo receptors in our skin and sends electrical impulses, along nerves, to the parts of the body which have the function of regulating our body temperature
You would find layers in a sedimentary rock, because it has different types of other rock combined in it.
Yes, short answer, I can not give you the specifics (consult your biology textbook)
Option B)
They prevent most of the Sun's rays from reaching Earth, thereby preventing Earth from heating up
