Answers: 1
Biology, 21.06.2019 18:30
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: 2
Biology, 22.06.2019 00:50
Iguanas need to live in a habitat that is very warm, so the pet store warms their enclosures with "basking lights" which act as an artificial sun. describe how the three methods of thermal energy transfer may take place within the iguana's enclosure.
Answers: 3
Biology, 22.06.2019 01:00
Mr. olajuwan was in a horrific snowmobile accident. afterwards he had trouble walking and he had a loss of balance. which of the 4 major brain region was probably demaged
Answers: 1
Biology, 22.06.2019 05:00
Which mechanism of transport takes place when solute particles move from a region of high concentration to a region of low concentration? active diffusion isotonic osmosis
Answers: 2
Which of these transport mechanisms moves glucose from the blood into a cell?...
Mathematics, 18.11.2020 01:20
Chemistry, 18.11.2020 01:20
History, 18.11.2020 01:20
Mathematics, 18.11.2020 01:20
Mathematics, 18.11.2020 01:20
English, 18.11.2020 01:20
Biology, 18.11.2020 01:20
Mathematics, 18.11.2020 01:20
Mathematics, 18.11.2020 01:20
Mathematics, 18.11.2020 01:20
Chemistry, 18.11.2020 01:20
Mathematics, 18.11.2020 01:20