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Home Q & A Board Biology-Related Homework Help General Biology
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Darryl2057 Darryl2057
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6 years ago
Acquired immune deficiency syndrome (AIDS) now infects about
 
  a. 20 million people; however, the number is decreasing because of an effective vaccination
  campaign.
  b. 20 million people; however, the number is decreasing because of effective antibiotic
  treatments.
  c. 33 million people; however, the number is decreasing because of an effective vaccination
  campaign.
  d. 33 million people; however, the number is decreasing because of effective antibiotic
  treatments.
  e. 33 million people, and continues to spread.

Question 2

How do lymph nodes aid in a cancer diagnosis?
 
  What will be an ideal response?
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1 Reply

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wrote...
#1
6 years ago
Answer to q. 1

E

Answer to q. 2

The lymphatic system filters extracellular fluids. Therefore, if cancerous cells have metastasized
(spread from the initial location), it is likely that some cancerous cells may be located in the lymph
nodes. The examination of numerous lymph nodes surrounding the primary site of the cancer may
enable the physician to determine if localized treatment will be effective or if a broader spectrum
approach is necessary.
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