This occurs because they sweat less but, through respiration, skin and other parts of the body, fluids are lost in the same amount. Equally, staying hydrated is important during winter for total ...

It has many important parts, including: If body temperature increases over this temperature, enzymes will denature and become less effective at catalysing important reactions, such as respiration.

Extension: Where does aerobic respiration occur? Show electron microscope images of mitochondria in a cell. Compare the number of mitochondria in muscle and skin cells. Why are there so many in ...