Answers: 3
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: 3
Biology, 21.06.2019 20:00
Consider an organism that is eukaryotic, found in both unicellular and multicellular forms, may resemble a plant but is not photosynthetic, has chitin in its cell walls, and absorbs organic nutrients from decomposing material in the environment. this organism would be classified as which of the following types of organisms? a. fungib. protozoac. bacteriad. archaea
Answers: 1
Biology, 22.06.2019 02:00
The idea of spontaneous generation was disproved by in a experiment involving jars of meat
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Biology, 22.06.2019 03:00
Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?
Answers: 3
A is one in which there are no breaks in the electrical path which allows energy to transfer to a el...
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