Did you know?
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
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.
Four types of cellular responses to positional information in animals.
Massive amounts of wood are stored on the forest floor of old-growth temperate coniferous forests of
Clear the lower leg with long strokes. Start proximal to the ankle, and stroke to the knee and ...
Full-term Fetus
In the figure, a 10.0-m long bar is attached by a frictionless hinge to a wall and held ...
8.The following table contains DNA-sequence information compiled by Marilyn Kozak (1987). The ...