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Author Question: Describe two different scientific hypotheses associated with the modern human origins debate. ... (Read 100 times)

altibaby

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on: Aug 11, 2018
Describe two different scientific hypotheses associated with the modern human origins debate.
 
  What will be an ideal response?

Question 2

While dark skin pigmentation has enjoyed a selective advantage in the tropics, the opposite is true in northern latitudes, where skins have generally been lightly pigmented. This light pigmentation enables the weak ultraviolet radiation of northern latitudes to penetrate the skin and stimulate formation of:
 
  a. melanin.
  b. niacin.
  c. vitamin B.
  d. vitamin D.
  e. vitamin E.


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kkenney

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Reply #1 on: Aug 11, 2018
Answer to Question 1

The multiregional hypothesis argues that modern humans originated through a process of simultaneous local transition from Homo erectus to Homo sapiens throughout the inhabited world, whereas the recent African origins hypothesis argues that all modern people are derived from a single population of archaic Homo sapiens who migrated out of Africa after 100,000 years ago, replacing all other archaic forms due to their superior cultural abilities.

Answer to Question 2

d


altibaby

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Reply #2 on: Aug 11, 2018
Both answers were spot on, thank you once again


kkenney

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Reply #3 on: Aug 11, 2018
Great! Please up vote :D


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