1.
In the colder climates, humans responses to the environment
in many ways. Positively there is an increase in basal metabolic rate, fat
insulation, and change in blood flow. More importantly, the negative effects
are reactions such as hypothermia. Due to concentration of body heat in the
torsos, there was a loss of fingers, toes to create a severe frostbite.
2.
Short-term adaptation: It is a stress with a
short and quick response; it maintains homeostasis in an orderly immediate
matter. An example would be shivering when the climate is cold.
Facultative adaptation: These are genetic
traits that involve turning genes on/off to alter a phenotype in the environment,
not a change in the DNA of the organism. As long as the stress is applied, the
phenotype will be adjusted but can return to the normal mode when stress is
released. Just as in when someone stands upside down, all the blood races to
your head; when you return to right side up again, then the blood will return
to all the appropriate places.
Developmental
adaptations: These traits can only change through long terms, generations at a
time, an individual does not have the power to adjust. The long-term stress is
applied with evolutionary forces. In warm climates, the people tend to be
slimmer because of the heat they do not want to retain.
Cultural adaptations: Humans, with culture,
can help to adapt to environmental stresses on occasion. Cultural adaptations
include social behaviors, practices, tools, diet and more. An example is how we
dress according to where we live.
3.
Human variation is very interesting; humans are
all the same but cultural and environmental situations alter the way everyone
acts, feel and treat one another. In order to understand how humans think,
respond and act you must have a deeper understanding of where they come from.
This can truly positively affect everyone. For instance, I am moving to North Carolina
next week. In order for me to understand that culture, I have to pay attention
to what they eat, how they dress, and the different accent they have. I need to
understand that their living is much slower than Los Angeles, what I’m used to.
To understand other people, you need to put it into perspective.
4.
Different races are understood with the
adaptation to variations. Cultural adaptations are the only adaptation that
makes complete sense to me. It is defined to help adapt to the environmental stresses
when necessary. This the social behaviors, tools, food, practices, and
clothing; the understanding between how races are, becomes a happy median to
how these cultures will adapt with others. It’s hard to explain human variation
because we are all similar but with the exception of cultural environments, we
tend to be very different amongst races. That needs to be very much understood.