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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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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Our Environment Our Environment
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Structures formed by phospholipids in an aqueous environment. Structures formed by phospholipids in an aqueous environment.
The social movement that centers on the environment has become global. In all nations, people are ... The social movement that centers on the environment has become global. In all nations, people are ...
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Video: Depolarization of the SA node, Action potentials of the myocardium & ANS effects

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