« previous next »
« previous next »
 

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

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?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Crossing over creates heteroduplex DNA Crossing over creates heteroduplex DNA
Hiatal hernia. (a) The hernia occurs when the stomach protrudes through the diaphragm and into the t Hiatal hernia. (a) The hernia occurs when the stomach protrudes through the diaphragm and into the t
Sample of a business card design. Sample of a business card design.
Happy Halloween Happy Halloween
Business Math Business Math
Separation of variable number tandem repeat (VNTR) alleles after PCR amplification Separation of variable number tandem repeat (VNTR) alleles after PCR amplification
Video: Cellular defenses (natural killer cells, phagocyte types & process of phagocytosis)

For a complete list of videos, visit our video library