Did you know?
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
Normal bone versus bone with osteoporosis.
Normal karyotype.
Changes in bronchioles during an asthma attack: (a) normal bronchiole, (b) inflammation obstructing ...
An accessory belt tensioner. Most tensioners have a mark that indicates normal operating location. ...
A scope display showing a normal Chevrolet Equinox MAF sensor at idle speed. the frequency is 2,600 ...
The illusory bands visible in this figure are often called Mach bands, although Mach used a ...