In a small group of people living in a remote area, there is a high incidence of "blue skin" a condition that results from a variartion in the structure of hemoglobin. All of the "blue-skinned" resident can trace their ancestry to one couple, e who were among the original settlers of this region. The unusually high frequency of "blue skin" in the area is an example of:
a- genetic drift
b- heterozygote advantage
c- natural selection
d- mutation
Answers: 2
Biology, 22.06.2019 05:40
Benito is doing research on the effects of florida's elevation on its climate. his notes include the following: 1. the average elevation of florida is 30 m above sea level. 2. the highest point in florida is britton hill, which is 105 m above sea level. 3. the change in temperature from 0 m to 1,000 m is 7 °c. what can benito conclude about the effects of florida's elevation on its climate? a.) florida typically experiences cold temperatures and temperature changes within a narrow range. b.) florida typically experiences cold temperatures and temperature changes within a broad range. c.) florida typically experiences warm temperatures and temperature changes within a narrow range. d.) florida typically experiences warm temperatures and temperature changes within a broad range.
Answers: 1
Biology, 22.06.2019 06:00
In "the man in the water," what was the remarkable occurrence that rosenblatt reported?
Answers: 1
Biology, 22.06.2019 09:30
Natural resources are any materials that humans obtain from the earth to meet our wants and needs.
Answers: 3
Biology, 22.06.2019 12:00
Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.
Answers: 1
In a small group of people living in a remote area, there is a high incidence of "blue skin" a condi...
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