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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

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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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Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Abundant cave art after about 30,000 years ago is evidence of the importance of symbolic behavior fo Abundant cave art after about 30,000 years ago is evidence of the importance of symbolic behavior fo
Risk-taking behavior by young males. Risk-taking behavior by young males.
Neural Circuitry in Defensive Behavior and Predation Neural Circuitry in Defensive Behavior and Predation
Mendel’s observations about segregation and independent assortment are explained by the behavior ... Mendel’s observations about segregation and independent assortment are explained by the behavior ...
Normal compound eye of adult Drosophila Normal compound eye of adult Drosophila
Multiple origins of replication on a single chromosome from Drosophila melanogaster Multiple origins of replication on a single chromosome from Drosophila melanogaster
Video: Brain Anatomy Animation (Part 2 of 2)

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