« previous next »
« previous next »
 

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Growing Plants Hydroponically Growing Plants Hydroponically
Placenta previa, longitudinal section showing the placenta growing over the opening into the cervix. Placenta previa, longitudinal section showing the placenta growing over the opening into the cervix.
Consecutive segments of the Nephron Consecutive segments of the Nephron
How Fast is the World's Population Growing? How Fast is the World's Population Growing?
Growing plants in a container garden can provide healthy, nutritious vegetables for your dinner Growing plants in a container garden can provide healthy, nutritious vegetables for your dinner
Growing snails in class room sk Growing snails in class room sk
Video: Diversity of Living Creatures - Charles Darwin & the Beagle's Voyage

For a complete list of videos, visit our video library