Biology, 22.05.2020 03:10 brianadee800
Five closely related species of frogs live in ranges that overlap. Some breed in woodland ponds, some in lowland swamps, and some in streams. How do these five species of frogs remain separate and do not attempt to mate?
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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.
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Biology, 21.06.2019 20:30
According to the big bang theory, after the "bang," the universe remained dark until about 300,000 yearsone billion yearsthree minutesthree billion years later, when neutral atoms began to form.
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Biology, 22.06.2019 04:30
What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an
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Five closely related species of frogs live in ranges that overlap. Some breed in woodland ponds, som...
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