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Questions and Answers
What is the primary characteristic that distinguishes cancer from benign tumors?
What is the primary characteristic that distinguishes cancer from benign tumors?
- Rapid growth rate
- Presence of abnormal bleeding
- Ability to invade or spread to other parts of the body (correct)
- Pain at the site of the tumor
Which factor contributes to the highest percentage of cancer deaths?
Which factor contributes to the highest percentage of cancer deaths?
- Obesity
- Tobacco use (correct)
- Excessive alcohol consumption
- Poor diet
How do certain factors like infections and environmental pollutants contribute to cancer development?
How do certain factors like infections and environmental pollutants contribute to cancer development?
- By increasing blood supply to the tumor
- By causing rapid cell division
- By changing the genes of a cell (correct)
- By promoting healthy cell growth
What are some possible signs and symptoms of cancer?
What are some possible signs and symptoms of cancer?
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What percentage of cancers in the developing world are due to infections?
What percentage of cancers in the developing world are due to infections?
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