When water activity is low, an organism must
A. increase its internal solute concentration.
B. increase its external solute concentration.
C. decrease its internal solute concentration.
D. decrease its external solute concentration.
Answer:A
When water activity is low, an organism must
A. increase its internal solute concentration. B. increase its external solute concentration. C. decrease its internal solute concentration. D. decrease its external solute concentration.