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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Origins of replication in the chromosomes of different organisms Origins of replication in the chromosomes of different organisms
Dissimilar organisms with similar approaches to desert living. Dissimilar organisms with similar approaches to desert living.
All living organisms descended from a common ancestral cell All living organisms descended from a common ancestral cell
The Atmosphere’s Oxygen Came from Photosynthetic Organisms The Atmosphere’s Oxygen Came from Photosynthetic Organisms
Administer Oxygen Administer Oxygen
Hill plots of oxygen binding for myoglobin and hemoglobin under physiological conditions Hill plots of oxygen binding for myoglobin and hemoglobin under physiological conditions
Video: Pores and Ion Channels

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