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, 22.06.2019 03:00
What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.
Answers: 2
Biology, 22.06.2019 04:00
Number and variety of living organisms includes genetic, species, and ecological types
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Biology, 22.06.2019 06:10
Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt
Answers: 2
In the mutualistic relationship between clownfish and sea anemones, what is likely to happen to the...
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