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Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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Development of the External Genitalia Development of the External Genitalia
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(a) Blue arrows (right side): External components of the innate immune system: human body with skin, ... (a) Blue arrows (right side): External components of the innate immune system: human body with skin, ...
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EXTERNAL ANATOMY OF CHICKENS EXTERNAL ANATOMY OF CHICKENS
Video: DNA Replication

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