Biologists are concerned about the long-term survival of northern elephant seals because ________. ...

Biologists are concerned about the long-term survival of northern elephant seals because ________.
 
  a. the population contains little genetic variability and could be vulnerable to selection pressures
 b. elephant seals are still hunted
 c. many individuals are emigrating to southern habitats and taking genetic diversity with them
 d. killer whales, whose populations are increasing in some areas, prey on elephant seals

Question 2

The full transfer of an entire DNA molecule to an F- cell would take about ____ minutes.
 
  a. 1020
  b. 2030
  c. 300400
  d. 47
  e. 90100