Question

How are humans most affected by the altitude changes in the Andean countries?

Choose all answers that are correct.


A.
People at higher elevations live in colder temperatures.

B.
People at the lowest elevations feel the effects of thinning air.

C.
People cannot grow crops in the highest elevations.

D.
People experience adequate rainfall throughout each elevation range.

Answer 1

@dmcdowell

Answer 2

High-altitude adaptation in humans is an instance of evolutionary modification in human populations in Tibet, the Andes and Ethiopia, who have acquired the ability to survive at extremely high altitudes. The phrase is used to signify irreversible, long-term physiological responses to high-altitude environments, associated with heritable behavioural and genetic changes. While the rest of human population would suffer serious health consequences, these native inhabitants thrive well in the highest parts of the world. These people have undergone extensive physiological and genetic changes, particularly in the regulatory systems of respiration and circulation, when compared to the general lowland population.[1][2] This special adaptation is now recognised as a clear example of natural selection in action.[3] In fact, the adaptation account of the Tibetans has become the fastest case of human evolution in the scientific record, as it is estimated to have occurred in less than 3,000 years

Answer 3

that was copied off wiki give me a sec and ill find the answer

Answer 4

So.. I'm thinking A and C

Answer 5

im shooting for C or D :\

Answer 6

hmm.. Well.. a is true, the air gets colder the higher you go

Answer 7

yea. one sec

Answer 8

And cold can be a serious issue or a good thing. It can affect things very easily, like their way of life. If it wasn't cold, they wouldn't get much snow, and they wouldn't wear jackets.. So, I think.. A and C

Answer 9

i think its A lol

Answer 10

Ok, then on to the next Q!

Answer 11

oky!!!!!!!!