<span>Human skin is one of the more important cooling systems. Unlike many other mammals, humans have sweat glands. These cool the surface of the skin by evaporating water. Body heat is carried to the surface of the skin by the circulatory system. Humans also have finer hair than other animals. We are actually as hairy as chimpanzees, but our hair is so fine it makes us appear to have none. This lack of dense hair allows the skin to evaporate sweat more efficiently. Another human cooling mechanism is our posture. Walking upright means only a small portion of the body is exposed to direct sun during the hottest part of the day. Our ancestors were thought to scavenge during this period because preditors had to escape the sun. Walking on 4 legs meant the entire surface of the back was exposed to the sun.A uniquely human adaptation to heat is the scalp. Blood vessels run directly from the surface of the brain through pores in the skull and out across the head and face. This serves to cool the brain. Humans have enromous brains which generate quite a lot of heat. This system of veins serves like a kind of radiator, keeping the brain from overheating. It also explains why head injuries tend to bleed so profusel</span>
Answer:
the answer is b guys
Explanation:
cooking makes things solid and that adds to the mass
mark brainliest!
<span>Different elements within the compound/ion.</span>
The role of environmental factors in very long-distance run or other performances is that the longer the performance, the greater the chance that environmental factors play a role in the result and is a limiting factor.
<h3>What is Energy?</h3>
This is referred to as the ability or the capacity to do work and examples include the following: potential, chemical energy etc.
The longer the performance, the greater the chance that environmental factors play a role in the outcome and they become limiting in terms of energy production because they are able to restrict or influence certain activities needed for its generation.
Read more about Energy here brainly.com/question/19666326
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