« previous next »
« previous next »
 

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

The respiratory system is assessed for ventilatory changes. The respiratory system is assessed for ventilatory changes.
Solar System Solar System
Disorders and Diseases of the Digestive System Cont Disorders and Diseases of the Digestive System Cont
Functional divisions of the nervous system. Functional divisions of the nervous system.
The Digestive System The Digestive System
The system moves at 1.50 2 m/s while the inclined planes are rough. a) Determine the ... The system moves at 1.50 2 m/s while the inclined planes are rough. a) Determine the ...
Video: Primary Active Transport - electrochemical gradient and ion transport / water movement

For a complete list of videos, visit our video library