Tuesday, October 14, 2014

Adaptation

Heat and its effects on Homeostasis

Heat as many effects on us some are heat exhaustion which causes dizziness, headaches, and fainting; heatstroke causing body temperature of over 103 and dry skin; sunstroke and organ damage.  Some of this can be treated by rest and water, but some are very serious and need the assistance of a doctor.

How we adapt to Heat

A short term adaptation we take against heat is sweating. When are body begins to heat up are body begins to sweat in order to help our bodies to cool down.

Developmental adaptation: Someone who is small/thinner as a better time dealing with heat. Someone who is big as more cells which cause heat. So someone who is small/thin would have less cell therefore don’t have that much body heat.


Facultative adaptation: Our body normal core temperature is 37-38C and when our bodies begins to heat up around 39-49C our brain tell or muscles o slow down which causes fatigue. Above 41C the body begins to shut down and this is a when it becomes very dangers.


Some Cultural adaptation that we make is when it’s hot we move to cooler places (travel), we change the way we dress. And we come up with different invention to make it cooler where we are. Some examples would be shorter clothes, wearing lighter/thinner fabrics, swimming pools, air conditioner, fans.


The benefit to looking and studying human variation in this way is that we are able to see the way that we react to different environments. Through seeing how we react to environments we are allowed to find way to adapt and survive. We are able to come up with homes that can survive different environments and help us to survive different types of weather. As well us we are able to come up with things to help survive outside the comfort of our homes like products and clothing.

Different races live in different environments and in those in environments they do not have access to the same resources as those in other places. So then you have to look at those details when going in. As well you will have to look at the different skin 7tones, the body shapes and sizes. But with some of the other categories like short-term and facultative adaptation those are qualities we are born with so race wouldn’t help with studying those.

3 comments:

  1. Good opening discussion on the problems arising from heat stress.

    Good explanation of your short term, developmental and cultural adaptations.

    For your facultative trait, keep in mind that adaptations are helpful to the body, not hurtful. Fatigue is a sign that something is wrong, not that your body is adapting to heat stress. It is not an adaptation. An example of an adaptation to heat stress is vasodilation, which opens up the capillaries near the skin to help with excess heat disbursement.

    Good explanation for the benefits of the adaptive approach.

    While I see what you are trying to argue in the last section, I suggest the answer is a little more clear cut than that. Race is a social construct, subject to the biases and preconceptions of individual culture. It is not a biological/genetic construct, so how can it be used to objectively understand biological/genetic variation?

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  2. I really like your examples of the four adaptations to heat and they helped me understand the differences between them. I like your pictures too, they went really well with your examples and the baby one was really cute! The only thing I would say is just check for grammar issues before posting because at some points it was hard to follow the post. Other than that, really good job; it was very informative!

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  3. I also did my blog post on heat and I'm really glad I read yours! I totally forgot to mention that skin cancer came from heat/the sun. I also didn't even realize that an adaptation to get out of the heat was to travel. Very good post!

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