« previous next »
« previous next »
 

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

The average adult has about 21 square feet of skin.

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.

The levels of biological organization The levels of biological organization
Water Molecules Surround Ions Water Molecules Surround Ions
A biological profile from the bony remains of an individual may be preferable to a DNA profile for a A biological profile from the bony remains of an individual may be preferable to a DNA profile for a
Diagram of a cell membrane. The cell membrane is a double layer of phospholipid molecules with ... Diagram of a cell membrane. The cell membrane is a double layer of phospholipid molecules with ...
The Biological Functions of Nucleic Acids: A Preview of Molecular Biology The Biological Functions of Nucleic Acids: A Preview of Molecular Biology
Biological Treatments for Mental Disorders Biological Treatments for Mental Disorders
Video: Type of Cell Junctions - Desmosome, Hemidesmosomes and Gap Junctions

For a complete list of videos, visit our video library