Biology, 25.07.2019 07:00 jemseidle8889

What percentage of the earth's total freshwater is in the form of groundwater?

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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.

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Biology, 22.06.2019 09:00, risaroo070618

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.

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Biology, 23.06.2019 00:30, QueenNerdy889

Which of the following is not a symptom of desertification?

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Biology, 23.06.2019 07:00, eila3601

Answer fast i'm giving 40 ! a person who is interested in the role of genetics in health might pursue a career 1.) endocrinology 2.) gene therapy 3.) neuroscience 4.) sports medicine