Biology, 24.07.2019 09:30 AlaskaAirlines
People living in equatorial countries have a darker skin tone than others. what would be the reason for this change in skin tone? a. the ancestors of the people living in equatorial countries must have undergone a mutation for protection from malarial parasites and therefore evolved a darker skin tone. b. the ancestors of the people living in equatorial countries must have undergone evolutionary adaptation for protection from harmful uv rays that fall straight on the equator. c. people living in equatorial countries develop a darker skin tone due to the exposure to harmful ir rays falling straight on the equator, which damages their skin. need answer !
Answers: 2
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Aremote community desperately needs more electrical energy. it is located in an area with the following characteristics: average wind speed of 15 – 20 km/hr some medium-sized rivers with slow-moving currents few coal deposits some oil exploration being conducted within 400 miles based on the above information, which energy source would be the most economical and safest for the community to pursue? a. fossil fuel b. hydroelectric c. nuclear d. wind
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People living in equatorial countries have a darker skin tone than others. what would be the reason...
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