« previous next »
« previous next »
 

Did you know?

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

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Old Time Farm Shepherd Old Time Farm Shepherd
Interventions to promote safety for children Interventions to promote safety for children
Observed Mother–Child Arguments at Five Time Points Over an Eight-Year Period Observed Mother–Child Arguments at Five Time Points Over an Eight-Year Period
Velocity-time Graph Velocity-time Graph
Milankovitch cycles interact over time Milankovitch cycles interact over time
Over time, cells acquire mutations. Two independently acquired mutations in the same cell may be suf Over time, cells acquire mutations. Two independently acquired mutations in the same cell may be suf
Video: Semidiscontinuous DNA replication

For a complete list of videos, visit our video library