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Home Q & A Board Biology-Related Homework Help Medicine Nursing and Clinical
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Sandie95 Sandie95
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6 years ago
Which statement best describes why children have fewer respiratory tract infections as they grow older?
 
  a. The amount of lymphoid tissue decreases.
  b. Repeated exposure to organisms causes increased immunity.
  c. Viral organisms are less prevalent in the population.
  d. Secondary infections rarely occur after viral illnesses.
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aemedeiros623aemedeiros623
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6 years ago
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Sandie95 Author
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6 years ago
This helped my grade so much Perfect
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Good timing, thanks!
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