« previous next »
« previous next »
 

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Male reproductive structures in humans. Male reproductive structures in humans.
Structure of a typical plant cell Structure of a typical plant cell
When cats mate, the tomcat (male) bites the scruff of the female's neck as she assumes a positi When cats mate, the tomcat (male) bites the scruff of the female's neck as she assumes a positi
Female African elephant with calf, in Kenya. Female African elephant with calf, in Kenya.
A typical 3 ton (6,000 lb) capacity hydraulic jack. A typical 3 ton (6,000 lb) capacity hydraulic jack.
The traditional human karyotypes derived from a normal female and a normal male The traditional human karyotypes derived from a normal female and a normal male
Video: Structures that affect circulation - arterioles and vasomotor responses

For a complete list of videos, visit our video library