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Author Question: Human populations living in temperate, northern climates generally have light skin color because it ... (Read 58 times)

Evvie72

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on: Aug 11, 2018
Human populations living in temperate, northern climates generally have light skin color because it
 
  A. helps to prevent rickets.
  B. exists in a balanced polymorphism.
  C. helps to prevent sickle-cell anemia.
  D. helps to protect against skin cancer.
  E. protects against hypervitaminosis.

Question 2

________ causes neural tube defects.
 
  A. An overproduction of vitamin D
  B. An underproduction of vitamin D
  C. A diet rich in fatty fishes
  D. The HbS allele
  E. The destruction of folate


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billybob123

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

A

Answer to Question 2

E


Evvie72

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Reply 2 on: Aug 11, 2018
Gracias!

billybob123

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Reply 3 on: Yesterday
Wow, this really help

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