Biology, 31.07.2019 06:00 williamsvilletiles
Clams and oysters are examples of invertebrates. which structure in these animals protect their internal body parts? shell, backbone, gills, or muscles
Answers: 2
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
Clams and oysters are examples of invertebrates. which structure in these animals protect their int...
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