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 longest a person has survived after a heart transplant is 24 years.
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There are approximately 3 million unintended pregnancies in the United States each year.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
The response of hair cells to mechanical stimulation.
Growth response by grasses grazed by wildebeest
Immune Response
An Overview of Perceptual, Stimulus–Response (S-R), and Motor Learning
PGC-1 and SIRT1 control the reprogramming of fuel utilization pathways in response to fasting