Did you know?
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
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.
A comparison between anagenesis and cladogenesis: two patterns of speciation.
The conduction system of the heart; traces the path of the electrical impulse that stimulates the he
This chart illustrates the “drip down” model of government. In this, politics is formed by the soc
Correct position when lifting a heavy object off the floor.
Tracking Goal-Setting Progress
Allopatric Speciation in Snapping Shrimp