In some regions, crabs are being threatened because they're popular delicacies in restaurants and common souvenirs for tourists. why do you think it's important to preserve these crabs? can you think of another environmental condition that could affect the population of these crabs?
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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 21:30
In which case would a scientist choose to use a dissecting microscope rather than a compound microscope
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Biology, 21.06.2019 22:00
Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.
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Biology, 21.06.2019 23:10
Depending on the organism the number of in a cell may change
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In some regions, crabs are being threatened because they're popular delicacies in restaurants and co...
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