Question

how would the contractile vacuole of a freshwater amoeba respond if the organism was placed in seawater? with more contractions with fewer contractions the contractions would suddenly cease with the same frequency of contractions

Explanation:

The contractile vacuole in a freshwater amoeba expels excess water that enters the cell due to osmosis. Seawater is hyper - tonic compared to the amoeba's cytoplasm. So, less water would enter the amoeba, reducing the need for the contractile vacuole to contract.

Answer:

with fewer contractions