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Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Types of movement across a biological membrane. Types of movement across a biological membrane.
spider spider
The wolf spider, Lycosa godeffroyi, is common in many areas of Australia. In this family of spiders, The wolf spider, Lycosa godeffroyi, is common in many areas of Australia. In this family of spiders,
trapdoor spider trapdoor spider
Arthroscopic surgery. In this illustration, the knee joint is undergoing surgery with a specialized Arthroscopic surgery. In this illustration, the knee joint is undergoing surgery with a specialized
Membrane rafts Membrane rafts
Video: Mendel's pea plant, Pisum sativum experimental

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