What structure, found in
plant cells, uses the process
of exocytosis to remove
water?
a. nucleus
b. contractile vacuole
c. cell wall

B contractile vacuole

Explanation:

The Contractile vacuole is the only part that  Excesses Water.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

enzyme speed up the reactions