In the observational study, the data provides a correlation between living close to the ozone hole and increasing one's chance of developing skin cancer. In the experimental study, where variables are directly manipulated and controlled, a relationship between exposure to higher levels of UV-B and contracting skin cancer is tested in mice.
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Biology, 21.06.2019 16:00
Match the digestive enzymes to the macromolecules they to digest. break down fats into glycerol and fatty acids break down carbohydrates into simple sugars break down nucleic acids into nitrogenous bases and simple sugars break down proteins into amino acids
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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, 22.06.2019 01:10
Greenthe fossil record is the history of life recorded byhuman observationgod.climatologists.remains of the past.
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In the observational study, the data provides a correlation between living close to the ozone hole a...
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