Conditions such as leukoplakia or lentigo maligna should be ...

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Conditions such as leukoplakia or lentigo maligna should be regarded as:
 
  A. a sign that cancerous cells are present in the tissue and a tumor will soon become evident.
  B. a warning that the patient is receiving too much sun exposure and should stay indoors.
  C. a life-threatening emergency needing immediate treatment.
  D. an indication that changes have occurred in tissue that could become cancerous if the site is left untreated.

Question 2

What is the main buffer in the extracellular fluid?
 
  A. Phosphate buffer system
  B. Bicarbonate-carbonic acid
  C. Urea
  D. None of the above

[cpetit11]

Answer to Question 1

D

Answer to Question 2

B

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Wow, this really help

[Liddy]

Thanks for the timely response, appreciate it