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Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

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Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

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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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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Sickle cell anemia. The clinical manifestations of sickle cell anemia result from pathologic changes Sickle cell anemia. The clinical manifestations of sickle cell anemia result from pathologic changes
animal cell animal cell
Cell-fie Cell-fie
Incomplete Dominance in Sickle-Cell Inheritance Incomplete Dominance in Sickle-Cell Inheritance
Reproductive Cell Division: Meiosis I Reproductive Cell Division: Meiosis I
Major cell cycle checkpoints Major cell cycle checkpoints
Video: Hormonal regulation of pregnancy - week 1

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