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Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Did you know?
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.