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Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Atherosclerosis. (a) A sectioned coronary artery that exhibits an accumulation of fatty plaque, whic Atherosclerosis. (a) A sectioned coronary artery that exhibits an accumulation of fatty plaque, whic
Slit lamp examination. Slit lamp examination.
DNA consists of two complementary strands wound around each other to form DNA consists of two complementary strands wound around each other to form
Louis Comfort Tiffany, Tiffany Studios, Water-lily table lamp. Louis Comfort Tiffany, Tiffany Studios, Water-lily table lamp.
A polysome consists of an mRNA molecule loaded with many ribosomes, all engaged in translation. A polysome consists of an mRNA molecule loaded with many ribosomes, all engaged in translation.
Each chromosome consists of a single, long molecule of DNA within which are the sequences of individ Each chromosome consists of a single, long molecule of DNA within which are the sequences of individ
Video: Vascular tissues in a corn stem and a buttercup root

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