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Did you know?

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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Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

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Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Examples of the results of sexual selection, a type of natural selection. Examples of the results of sexual selection, a type of natural selection.
The sexual cycle of the basidiomycete fungus Coprinus disseminatus. The sexual cycle of the basidiomycete fungus Coprinus disseminatus.
The Circle of Relationship Issues and Sexual Problems The Circle of Relationship Issues and Sexual Problems
Sexual Development begins in the Seventh week of Gestation Sexual Development begins in the Seventh week of Gestation
Sexual Selection: Stalk-Eyed Flies Sexual Selection: Stalk-Eyed Flies
Video: Major Elements in Biological Molecules: Carbohydrates

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