« previous next »
« previous next »
 

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

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.

Examples of different cell types in humans Examples of different cell types in humans
The lymphatic system in humans. The lymphatic system in humans.
Both humans and apes readily engage in learned imitative behavior. Both humans and apes readily engage in learned imitative behavior.
Neadertal inner ear anatomy is distinctive from modern humans. Neadertal inner ear anatomy is distinctive from modern humans.
Independent assortment for two traits in humans follows the same pattern of inheritance as traits in Independent assortment for two traits in humans follows the same pattern of inheritance as traits in
Curved spines make cocklebur (Xanthium) fruits stick to the fur of animals (and clothing of humans) Curved spines make cocklebur (Xanthium) fruits stick to the fur of animals (and clothing of humans)
Video: Green alga life cycle Animation

For a complete list of videos, visit our video library