Answer the following statements true (T) or false (F)
1. Pain is a reliable guide to early detection of cancer.
2. Screening tests have been proven effective at reducing deaths from ovarian cancer.
3. Radiation therapy is more toxic than chemotherapy or surgery.
4. According to research by pathologist David Cheresh, depriving tumors of nutrients makes them more resistant to treatment.
1. False
2. False
3. False
4. True
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What role do HLA (MHC) antigens play in the thymus?
A) Selection of T cell clones that bind to foreign antigen B) Selection of T cell clones capable of binding to HLA (MHC) antigens C) Elimination of autoreactive T cell clones D) All of the above
Western researchers might explain the effects of acupuncture as being the result of
A. correction of the flow of qi. B. rebalancing of yin and yang. C. release of hormones and neurotransmitters. D. restoration of equilibrium.
Signs of inflammation include:
A) redness. B) being warm to the touch. C) pain. D) all of the above.
Congestive heart failure is a condition in which the heart fails to pump an adequate amount of blood to meet the body's needs
Indicate whether the statement is true or false