« previous next »
« previous next »
 

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

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.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Examples of deep-sea corals found in the Sable Gully, 200 km off the coast of Nova Scotia. Examples of deep-sea corals found in the Sable Gully, 200 km off the coast of Nova Scotia.
In early industrialization, children worked alongside adults. They worked 12 hours a day Monday to ... In early industrialization, children worked alongside adults. They worked 12 hours a day Monday to ...
The early development of the mammalian brain illustrated in schematic horizontal sections. Compare ... The early development of the mammalian brain illustrated in schematic horizontal sections. Compare ...
Types of fractures. Massage is contraindicated near fractures in early stages of healing. Types of fractures. Massage is contraindicated near fractures in early stages of healing.
Early Pottery From The Franchthi Cave, Greece Early Pottery From The Franchthi Cave, Greece
Early growth of corn (Zea mays), a typical monocot. Early growth of corn (Zea mays), a typical monocot.
Video: Plant Defense Mechanisms from Pathogens

For a complete list of videos, visit our video library