There atomic number 18 many no(prenominal) carcinogens which are materials that cause cancer but many are still undiscovered. Malignant tumors ("cancers") are capable of spreading to other parts of the body, whereas benign tumors cannot spread. Some benign tumors are called " hard-hitting" because they can destroy nearby bones and soft-tissues yet do not spread to other body sites. Sarcomas are malignant tumors that arise fro...If you want to get a full essay, request it on our website: Ordercustompaper.com
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