Wednesday, December 8, 2010

Human Variation & Race


1. 
Dealing with the heat is very difficult for us Humans because we deal with it sometime in our lifetime. The dangers of heat include many things such as: heat cramps, heat syncope or fainting, heat exhaustion and of course the major one of all heat stroke. There are countries like the Middle East and Africa that are known to be hot in areas that reach temperatures in the triple digits with a dry desert, humid weather. Nevertheless these are people that have lived in these conditions for many years and already used to adaptation, although the heat can cause serious damage to the environment and people, but there’s also the luxury of having swimming pools, air conditioning and other ways to escape the heat, but sometimes that’s not always available in some parts of the countries.


2. 
Short Term Adaptation- A short term effect of Heat can cause the body to loose fluids and salt through perspiration or replacing them in an imbalanced way which can lead to dizziness and weakness. Body temperature might rise, but possibly wont go past  102 degrees. The body feels tired and lazy in a way and you tend to feel disoriented, exhaustion kicks in and is more likely after a few days of heat wave that when one is just beginning.
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Facultative Adaptation- Those who naturally live in places were the Heat hits hard have adapted to there for many years and don’t mind living in hot conditions, they find ways to deal with the heat because they probably don’t have other places to go to keep cool. So therefore the bodies are custom to the weather, with not having the feeling of getting dizzy, exhaustion or any kind of heat stroke.



Development Adaptations- People born in hot spots like the Middle East, Africa and small countries that deal with constant heat are normal. I don’t think the phenotypic causes these people to change dramatically, during developmental there is a strong belief that as the years go by these people might change, maybe only a few who feel that the Heat is too much for them and tend to cool themselves down. But the population is huge, and are adapted to this Heat already and nothing can really change them.



Cultural Adaptations- Egypt is one of the countries were Heat takes its toll just like the Middle East and Africa. But these are cultures who are already use to the Heat and to this day it remains the same. Tourist are fascinated with these countries but also find it very hot to enjoy their vacations, therefore adapting to the Heat would be difficult for them, some will get heat strokes, dehydration and possibly get sun burn, If there not protected carefully. Although the Heat is dangerous these cultures don’t mind it at all, they will still continue to move on and adapt to Heat for a long time.




3.
Human variation is very important, this was a great understanding of how people have different looks and culture that they already adapt too, not only helpful? but knowing why these climates are what they are. But the best example is the difference in skin color? to me that gave the answer away, because it gave me a better understanding to why there skin color is very tan and also avoiding the heat but covering up, could it be the Heat? thats why human variation allows us to see certain features of these people which makes sense were there from and how they got it.





4.
Many places with Heat, there are certain people who can survived the scorching Heat. different race has their own adaptation, but what if they had to live in hot desert area for example: A guy who’s a light skin living in Canada where its cold and snows would this person adapt to a place like Egypt where the sun really hits you. It might take time for this person to adjust to the Heat but in the mean time he could have difficulties surviving. There are a lot of people who do find new places to live and adapt to that weather and just have to deal with it sure it will take years but thats how the body reacts.