1. Environmental Stress-cold
Humans may be blessed to walk on 2 feet do whatever we want and be the superior species but there are many things we dont have compared to animals. animals have a thick layer and coat the they have when its cold. When we find ourselves in cold environments our bodies have to adapt.when it is summer time and we feel a cold breeze or slight breeze but when its winter and we feel a breeze we feel very cold or frozen. this happens because our body can only adapt to a certain temperature and going past or below that temperature we feel heat or shiver this happens when the cold disturbs our homeostasis. The cold can also negatively impact us physically by harming our bodies (frostbite) or making our bodies utilize more energy to stay warm. Frostbite can cause loss of that body part or severe nerve damage
2.short term: when its cold humans will blow in there hand to create air or when it is hot they use there hand and wave it en them to create air shivering also goosebumps lets us know we are cold also vasoconstriction
Facultative: Vasoconstriction; which helps preserve the blood’s heat.
Developmental:
Humans may be blessed to walk on 2 feet do whatever we want and be the superior species but there are many things we dont have compared to animals. animals have a thick layer and coat the they have when its cold. When we find ourselves in cold environments our bodies have to adapt.when it is summer time and we feel a cold breeze or slight breeze but when its winter and we feel a breeze we feel very cold or frozen. this happens because our body can only adapt to a certain temperature and going past or below that temperature we feel heat or shiver this happens when the cold disturbs our homeostasis. The cold can also negatively impact us physically by harming our bodies (frostbite) or making our bodies utilize more energy to stay warm. Frostbite can cause loss of that body part or severe nerve damage
2.short term: when its cold humans will blow in there hand to create air or when it is hot they use there hand and wave it en them to create air shivering also goosebumps lets us know we are cold also vasoconstriction
Facultative: Vasoconstriction; which helps preserve the blood’s heat.
Developmental:
In colder climates, the way one develops is
the way one lives in a warmer climate.
To order to create more heat, for example, the body
learns how and adjust and store more fats to one one body.
cultural:
Clothing, such as furs and animal clothing, can hold heat much better and allows our bodies to retain this heat.
cultural:
Clothing, such as furs and animal clothing, can hold heat much better and allows our bodies to retain this heat.
3.
This is a very valuable knowledge for understanding how many people will respond to a new climate. We prefer not to look beyond the box and focus on our world. We don't know how many are adjusting. We would be lucky in California because our bodies will adjust to varying temperature environments. we don't know how others respond.
4.I don't think there's a way to grasp these changes with race. More than anything, I think it can be based on culture and how these cultures will adapt to different contexts.and I don't think race is a very efficient way of explaining human variation. Instead of the real reason why we are different, it breaking apart communities by basing them mostly on physical attributes.
You have some good information in your opening section, but the idea here is to dig a little deeper into the physiology of cold stress, i.e., how does cold negatively impact the function of the human body? So what happens to the body when the core body temperature drops below the optimum temperature of 98.6 degrees? What happens to our blood stream and our internal organs, especially our brain? Why can't it function well below this temperature?
ReplyDeleteShort term: Yes on shivering. Goosebumps *used* to be an adaptation but not anymore in humans. Goosebumps form when the tiny muscle attached to the base of the hair follicle contracts, causing the hair to stand upright. Now if the organism has a full coat of hair, this causes and air pocket of warm air to form between the skin and the hair to act as insulation. But without that heavy coat of fur, we gain no benefit. We are left with only the bumps.
Facultative: Good.
Developmental: You aren't actually identifying an adaptation in this section. An example would be a short, squat body shape, as per Bergmann and Allen's rules, as this reduces the surface area where body heat can escape. Check the assignment module in Canvas for more information.
Cultural: Good.
Your next section is far too general. Let's get more specific here. How can we use the information gained from this type of study on human adaptations to cold stress be used in a productive, concrete way? an knowledge on adaptations to cold climates have medical implications? Help us develop clothing that retains heat more efficiently? Can we develop new means of home/building construction that might help increase heat retention? How can we actually use this information in an applied fashion?
"I don't think there's a way to grasp these changes with race."
Okay. I agree... but why not? What is it about race that makes it impossible to use it to understand human variation?
To answer this question, you first need to explore what race actually is. Race is not based in biology but is a social construct, based in beliefs and preconceptions, and used only to categorize humans into groups based upon external physical features, much like organizing a box of crayons by color. Race does not *cause* adaptations like environmental stress do, and without that causal relationship, you can't use race to explain adaptations. Race has no explanatory value over human variation.
Good afternoon!
ReplyDeleteI liked reading your blog post especially because I did heat, so the opposite. I liked how simple yet informative your adaptations statements were. In your last little paragraph, I thought it was interesting how you said "More than anything, I think it can be based on culture and how these cultures will adapt to different contexts." I can actually agree with this and what you said afterwards. Great last post!!
Hi!
ReplyDeleteVery good post it was simple yet easy to read. So true people adapt differently to changes so it's always interesting to know what people did and how they did things differently. Interesting how for cultural you chose clothing I would not have thought of that, but very true different cultures use different clothing to withstand the cold.