Use your calculations above to explain why shivering keeps you warm and extreme muscular exertion cause you get hot

This happens due to the internal thermostat of the body, this is called the hypothalamus and it is a brain gland that orders the muscles to tremble to generate heat with them.

On the other hand, body temperature rises when we do exercise due to increased metabolism because we need to reach an optimum temperature for muscle contraction.

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.