« previous next »
« previous next »
 

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Three principle forms of natural selection: (a) stabilizing selection, (b) directional selection, an Three principle forms of natural selection: (a) stabilizing selection, (b) directional selection, an
Wood and wood-like synthetics are classic and attractive forms of fencing for horses Wood and wood-like synthetics are classic and attractive forms of fencing for horses
Anatomy of the Shoulder Joint Anatomy of the Shoulder Joint
If enough vapor is added to the air to saturate it, a precipitation fog forms beneath the cloud If enough vapor is added to the air to saturate it, a precipitation fog forms beneath the cloud
Common Root Words and Combining Forms Cont. Common Root Words and Combining Forms Cont.
Gently squeeze along the length of the arm with both hands, moving down the arm from shoulder to ... Gently squeeze along the length of the arm with both hands, moving down the arm from shoulder to ...
Video: Major Elements in Biological Molecules: Nucleic acids

For a complete list of videos, visit our video library