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Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

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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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Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Killer Whale - Size comparison to an average human. Killer Whale - Size comparison to an average human.
A Simplified Model of Information Flow in Human Memory A Simplified Model of Information Flow in Human Memory
Genome rearrangements that can be promoted by homologous recombination between two copies Genome rearrangements that can be promoted by homologous recombination between two copies
The Human Olfactory System The Human Olfactory System
Staphylococcus epidermidis, a common colonizer of human skin. Staphylococcus epidermidis, a common colonizer of human skin.
Loci of Some Human Genes Loci of Some Human Genes
Video: Structure of a Ribosome

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