« previous next »
« previous next »
 

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Fossil of an early invertebrate animal showing bilateral symmetry Fossil of an early invertebrate animal showing bilateral symmetry
Key stages of meiosis and mitosis Key stages of meiosis and mitosis
The cranium of early African H. erectus KNM-ER 3733 is nearly 1.8 million years old. The cranium of early African H. erectus KNM-ER 3733 is nearly 1.8 million years old.
Marijuana Use and Binge Drinking in Emerging Adulthood Rates of most kinds of substance use peak in Marijuana Use and Binge Drinking in Emerging Adulthood Rates of most kinds of substance use peak in
Interphase and the five stages of mitosis (2 of 2) Interphase and the five stages of mitosis (2 of 2)
Earth’s Early Atmosphere Earth’s Early Atmosphere
Video: Forming urine ( influencing factors), Forming dilute urine & Forming concentrated urine

For a complete list of videos, visit our video library