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pmulkerr pmulkerr
wrote...
Posts: 445
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6 years ago
What is characteristic of adult frogs?
  a. gills
  b. sucking air into their lungs
  c. countercurrent exchange
  d. pushing air into their lungs
  e. drawing water by inhalation across their gills

Question 2

The variable region of a light chain is indicated by ____.
  a. A
  b. B
  c. C
  d. D
  e. E
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Replies
wrote...
6 years ago
Answer to q. 1

ANSWER: d

Answer to q. 2

ANSWER: c
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