Biology, 27.09.2019 23:20, zakarycrane5723
The fossil record shows that an organism is relatively unchanged for a long period of time, followed by several changes over a short
period of time, followed by another long period of stability. this provides evidence for which view of evolution?
a. monophyletic development
b. biotic potential
c. punctuated equilibrium
d. graduated speciation
Answers: 3
Biology, 21.06.2019 18:30, narutoxptheninja
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 05:30, yudayang2012pa9u8p
What is the average speed of a car that traveled 300.0 miles in 5.5 hours
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Biology, 22.06.2019 16:30, dexterwilliams161
Why are human population trends difficult to predict?
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