« previous next »
« previous next »
 

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Looking at Cells Looking at Cells
The primary response causes B cells to produce memory B cells and a few antibodies. The second ... The primary response causes B cells to produce memory B cells and a few antibodies. The second ...
Fossil fuels production Fossil fuels production
A Breathalyzer is used to measure a person's blood alcohol concentration (BAC) A Breathalyzer is used to measure a person's blood alcohol concentration (BAC)
Stem Cell Production Stem Cell Production
Types of Long-Term Memories Types of Long-Term Memories
Video: Monohybrid crosses

For a complete list of videos, visit our video library