« previous next »
« previous next »
 

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?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Trilobite hypostome types based on attachment Trilobite hypostome types based on attachment
Deficient knowledge surgical procedures Deficient knowledge surgical procedures
Children with Down syndrome have a small head, short, thick neck, flattened face, and a distinctive ... Children with Down syndrome have a small head, short, thick neck, flattened face, and a distinctive ...
Water-based Diseases Water-based Diseases
Children's behaviour rating scores on measures of aggression and anxiety Children's behaviour rating scores on measures of aggression and anxiety
On the Flexible Item Selection Task (FIST) children are presented with three cards On the Flexible Item Selection Task (FIST) children are presented with three cards
Video: Methods that regulate pH

For a complete list of videos, visit our video library