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Did you know?

Your heart beats over 36 million times a year.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

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Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Flexibility of antibody molecules Flexibility of antibody molecules
Common hydrogen bonds in biological systems Common hydrogen bonds in biological systems
Oil molecules cling to metal surfaces but easily slide against each other. Oil molecules cling to metal surfaces but easily slide against each other.
MHC Class I and Class II Molecules MHC Class I and Class II Molecules
Relaxed and supercoiled DNA molecules Relaxed and supercoiled DNA molecules
Properties of some naturally occurring RNA molecules Properties of some naturally occurring RNA molecules
Video: Hemoglobin's affinity with oxygen - carbon dioxide, temperature and bisphosphoglycerate (BPG)

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