« previous next »
« previous next »
 

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

The family tree of HIV and related viruses The family tree of HIV and related viruses
Structural comparison of the genome components of eukaryotes, prokaryotes, and viruses Structural comparison of the genome components of eukaryotes, prokaryotes, and viruses
Cell Cell
Roger Shimomura, Enter the Rice Cooker. Roger Shimomura, Enter the Rice Cooker.
Structure of an animal cell Structure of an animal cell
Steps in the humoral and cell-mediated immune responses. Steps in the humoral and cell-mediated immune responses.
Video: Skin Cancer

For a complete list of videos, visit our video library