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Why is angiogenesis important to cancer development?
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- Although cancer is not a contagious disease in humans or other vertebrates, there have been rare cases in which cancers have spread from one organism to another. Describe three cases of these contagious cancers and what conditions might have led to their appearance. For an introduction to this topic, see http:// www.cancer.org/cancer/cancerbasics/is-cancer-contagious.Excessive angiogenesis and reduced apoptosis are two of the six characteristics that define cancerous tumors. Discuss how developing treatments for these two conditions might prevent the development of cancer altogether from pre-malignant tumors.What are tumors?