« previous next »
« previous next »
 

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Changes in boreal forest composition along a chronosequence in Quebec. Dates refer to the year of th Changes in boreal forest composition along a chronosequence in Quebec. Dates refer to the year of th
Changes in boreal forest composition along a chronosequence in Quebec. Dates refer to the year of th Changes in boreal forest composition along a chronosequence in Quebec. Dates refer to the year of th
Slap the foot bottom with the back of the hand. Rapid, light slaps create a stimulating sensation. Slap the foot bottom with the back of the hand. Rapid, light slaps create a stimulating sensation.
Refer to Scenario 3.1. If the price of potato chips is $0.50 and the price of Cola is $4.00, ... Refer to Scenario 3.1. If the price of potato chips is $0.50 and the price of Cola is $4.00, ...
Human sense of smell Human sense of smell
Selected Narrow Sense Heritability (h2) Values for Animals and Plants Selected Narrow Sense Heritability (h2) Values for Animals and Plants
Video: Four Giant Convection Cells oF Earth

For a complete list of videos, visit our video library