The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs.
<span>D is the correct answer. Controllable risk factors are factors you have control over, for example environmental or behavioural. These are such things as sexual behaviour and smoking. Her age and heredity are examples of uncontrollable risk factors, as a person cannot determine these.</span>
A genetic test to detect predisposition to cancer would likely examine the APC gene for involvement in colorectal cancer.
Adenomatous polyposis coli is known as APC. An individual has a higher lifetime chance of developing many colorectal polyps (from ten to hundreds) as well as colorectal cancer if they have a genetic mutation that interferes with the operation of the APC gene. Colon cancer can strike anyone at any age, but it often strikes older persons. Small, benign (noncancerous) cell clusters called polyps commonly grow on the interior of the colon as the first signs of the condition. Some of these polyps may eventually develop into colon cancer.
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