Some deer mice are physiologically adapted to live at high altitudes because of the following:

Some deer mice are physiologically adapted to live at high altitudes because of the following:
 
  a. adults maintain fetal forms of hemoglobin.
  b. mutations in hemoglobin that increase its oxygen-binding affinity.
  c. mutations in myoglobin that increase its oxygen-binding affinity.
  d. mutations that increase heart rates.
  e. mutations that decrease heart rates.

Question 2

During a dive, the partial pressure of dissolved gases increases by about 1 atm for every ____ in depth.
 
  a. 1 meter
  b. 5 meters
  c. 10 meters
  d. 15 meters
  e. 20 meters