This chapter discussed six different ways to treat cancer. List at least five, and briefly explain each process
What will be an ideal response?
Surgery, radiation, immunotherapy, chemotherapy, gene therapy, and inhibition of blood vessel formation are different ways to treat cancer. Surgery is usually performed to eradicate the cancer or remove as much as possible. If cancer has spread from the initial site but is still localized, surgery is usually followed by radiation therapy. When cancer is thought to have spread by the time of diagnosis, chemotherapy is often used. In general, the drugs used in chemotherapy reach all parts of the body and kill all rapidly dividing cells. The goal of immunotherapy, then, is to boost the patient's immune system so that it becomes more effective in destroying cancer cells. Blocking blood vessel formation to a tumor ultimately starves the tumor. Gene therapy is still in clinical trial stage and partially focuses on interrupting the gene expression in the cancer cell.
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The evolution of flowers and insects is an example of ____
a. parallel evolution b. homologous species c. coevolved species d. convergent evolution e. divergent evolution
Which factor is most responsible for the rapid population explosion of humans?
a. more prevalence of microorganisms to fight diseases naturally b. increasing availability of natural resources c. decreasing migration of human and animal populations d. decline in death rates without an equivalent decline in birth rates e. advances in reproductive technology
Substances that cause euphoria and relieve pain are
a. depressants. b. stimulants. c. analgesics. d. hallucinogens. e. antipsychotics.
Which of the following will NOT occur as a consequence of the activation of the baroreceptor reflex that would occur in response to an increased heat load within the body?
A) an increase in venoconstriction B) an increase in heart rate C) a decrease in resistance within the skeletal muscle vasculature D) an increase in stroke volume E) an increase in resistance within the skin vasculature