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.
Did you know?
The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.
Did you know?
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
A stallion exhibiting the characteristics of a Flehmen response
Characteristics of the three types of muscles.
Characteristics of Muscle Fibers
Testing the Chemical Characteristics of Urine with Reagent Strips
Testing the Chemical Characteristics of Urine with Reagent Strips
Common Characteristics of the Inheritance of Autosomal Recessive Traits Seen in Pedigrees