21. Carrot sticks that are left in a dish of freshwater for several hours become stiff and hard.
Similar sticks left in a saltwater solution become limp and soft. From this we can deduce that the
freshwater is
to the cells of the carrot sticks.
and the saltwater is
A. hypotonic, hypertonic
B. hypotonic, hypotonic
C. hypertonie, hypertonic
D. hypertonic, hypertonic