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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.

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There are approximately 3 million unintended pregnancies in the United States each year.

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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

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Green tea is able to stop the scent of garlic or onion from causing bad breath.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Ventral side of the trilobite Triarthrus eatoni. Ventral side of the trilobite Triarthrus eatoni.
Copepods, from Ernst Haeckel's 1904 work Kunstformen der Natur Copepods, from Ernst Haeckel's 1904 work Kunstformen der Natur
Vasectomy. (a) Vas deferens is located within the spermatic cord on both sides. (b) A small incision Vasectomy. (a) Vas deferens is located within the spermatic cord on both sides. (b) A small incision
Muscles of the right hand side view Muscles of the right hand side view
A typical pedestal grinder with a wire wheel on the left side and a stone wheel on the right side. ... A typical pedestal grinder with a wire wheel on the left side and a stone wheel on the right side. ...
How to find the phase shift from a graph? How to find the phase shift from a graph?
Video: Hormonal feedback loop components

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