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Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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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.

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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

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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.

Three principle forms of natural selection: (a) stabilizing selection, (b) directional selection, an Three principle forms of natural selection: (a) stabilizing selection, (b) directional selection, an
Immunization with a vaccine. A healthcare professional is injecting a vaccine into the patient’s arm Immunization with a vaccine. A healthcare professional is injecting a vaccine into the patient’s arm
Natural seletion Natural seletion
Natural abundance of Mercury Natural abundance of Mercury
Equipment and supplies needed for manual exfoliation using natural substances. Equipment and supplies needed for manual exfoliation using natural substances.
Stages of Natural Birth "مراحل الولادة الطبيعية" Stages of Natural Birth "مراحل الولادة الطبيعية"
Video: Nervous pathway to the Neuromuscular (NMJ)

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