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: 2
Biology, 21.06.2019 18:30
What process allows for the development of haploid sex cells? mitosis meiosis fertilization pollination
Answers: 1
Biology, 21.06.2019 21:00
What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?
Answers: 3
Biology, 22.06.2019 07:30
In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?
Answers: 3
What forms of energy are being transferred during the nitrogen cycle?...
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