Answers: 1
Biology, 21.06.2019 18:30, smelcher3900
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
Answers: 3
Biology, 22.06.2019 09:00, michael3592
Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f
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Biology, 22.06.2019 13:00, Bradgarner772
"your temperature analysis reveals a pattern with coldest temperatures located to the portion of the map."
Answers: 1
Biology, 22.06.2019 18:00, tytybruce2
The table below shows the elements that mainly comprise each of the four layers of earth: elements in layers layer main elements crust oxygen, silicon mantle iron, magnesium outer core iron, nickel inner core iron which of these elements make up the layer that is 0.2 to 1.1 percent of earth's total diameter?
Answers: 2
Which of these correctly distinguishes mitosis from meiosis?...
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