« previous next »
« previous next »
 

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Elephant work camp in Thailand. Elephants are used for heavy forest work and in circus presentations Elephant work camp in Thailand. Elephants are used for heavy forest work and in circus presentations
Keep your arms in front of your body as you work. Keep your arms in front of your body as you work.
How do men who work in traditionally feminine nurturng jobs and women who work in jobs that give ... How do men who work in traditionally feminine nurturng jobs and women who work in jobs that give ...
Work and Gender: Women at Work in India Work and Gender: Women at Work in India
Multitasking at work Multitasking at work
A sample of work by a Grade 4 student with a specific learning disorder A sample of work by a Grade 4 student with a specific learning disorder
Video: Cytotoxic T cell receptors, activation, proliferation, differentiation & action

For a complete list of videos, visit our video library