Hello this is for biological anthropology please help me answer what you can it

Question

Hello this is for biological anthropology please help me answer what you can it is for a test due soon. I always provode feedback on questions answerred, thank you.

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QUESTION 13 Which of the following is TRUE about human skin color? dark skin color is more susceptible to skin cancer than light skin color differences in skin color are the best indicators of race c. there are four basic skin pigments: red, black, brown, and white among peoples living in middle latitudes (nearer the equator), dark pigment is produced in the skin upon exposure to sunlight none of the above are true QUESTION 14 Human populations which reside in hot climates tend to be: tall and stocky (compact) short and stocky (compact) tall and thin (elongated) short and thin (elongated) all of the above, but at different times of the year

Explanation / Answer

Ans 13. Among people living in middle lattitude, dark pigment produced in the skin exposure to sunlight. Skin colour produce due to melanin pigment that is controlled by 6 genes. light skin people are more suspetible to skin cancer because less melanin and more absorbtion of ultra voilet rays (UV). so option 1 is incorrect. option 2 is also incorrect because 4 pigments are brown, black, yellow and red. melanin produced eumelenin that is for brown/ black and pheomelanin for yello/ red colour. so , correct answer is option C.

Ans 15. People living in extreme cold climate have short and round appearance with short arms & legs (thick body ) to provide minimum surface area in relation to body mass for minimum heat loss and protection of lungs and base of brain against cold air in the nasal passage. So, the answer is short and stocky (compact).

Ans 14. People reside in hot climate require the adaptation that cause dessipation of heat. Those are living in dry heat environment are tall and thin, provide maximum surface area for heat radiation. Heat dessipation provide cooling to our body. so ans is C tall and thin.

Ans 16. Such population have genes for permanantly darker skin. in equatorial region there is a more UV rays , means more melaninpigmentation in skin to prevent skin from UV radiation. Melanin production control by genes. In equatorial region, people have alleles that is responsible for darker skin colour.

Ans 17 light skin developed fairly recently when people migrated outside of Africa to the area of less intense sunlight. Ans c.

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