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Author Question: The earth is approximately how many years old? a. 1 billion. b. 9 million. c. 4.5 billion. ... (Read 97 times) |
Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.
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.