« previous next »
« previous next »
 

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Step 2 of gene cloning: The actions of a restriction enzyme and DNA ligase to produce a recombinant Step 2 of gene cloning: The actions of a restriction enzyme and DNA ligase to produce a recombinant
Mother giraffe and calves feeding. It is mostly the females that raise young, and they may gather in Mother giraffe and calves feeding. It is mostly the females that raise young, and they may gather in
In pretend play, toy figures and animals “come to life” and interact with each other. In pretend play, toy figures and animals “come to life” and interact with each other.
Eggs are an excellent source of protein, but egg yolks are high in cholesterol Eggs are an excellent source of protein, but egg yolks are high in cholesterol
Strings of frog eggs Strings of frog eggs
Video: Gas exchange - driving force

For a complete list of videos, visit our video library