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Answer:
to continually produce energy,your organs need oxygen and the oxygen is carried in your red blood cells.
All of the above.
The main greenhouse gases are: methane, carbon dioxide, chlorofluorocarbons, ozone, nitrous oxides and water vapor.
Her mother's genotype cannot be determined because it only says that the couple's first child has hearing. We cannot determine the genotype of the mother just only using the siblings or the genotye of the male or husband of the mother. So the answer in this queston is the mother's genotype cannot be determined.
Answer:
Earth's second atmosphere was formed when the amount of water vapor in the atmosphere decreased, as water started condensing in liquid form.