In some single-celled protozoans living in fresh water,
such as the paramecium, contractile vacuoles are
organelles are used to pump excess water out of the cell.
Explain why a paramecium would require contractile
vacuoles while a similar protozoan living in salt water
would not.

In salt water, the solute concentration outside the cell is more than inside the cell so the water flows out of the cell down the concentration gradient. Therefore contractile vacuoles are not required for expelling water for most protozoan living in salt water.

While on the other hand, paramecium lives in fresh water so contractile vacuole is required for removing excess water so we can conclude that paramecium needs contractile vacuole due to its different environment from other protozoan that lives in salt water.

Learn more about contractile vacuole here: https://brainly.com/question/15648413

In some single-celled protozoans living in fresh water, such as the paramecium, contractile vacuoles are organelles are used to pump excess water out of the cell. Explain why a paramecium would require contractile vacuoles while a similar protozoan living in salt water would not.

Answer :

Need of contractile vacuole for paramecium

Other Questions

In some single-celled protozoans living in fresh water,
such as the paramecium, contractile vacuoles are
organelles are used to pump excess water out of the cell.
Explain why a paramecium would require contractile
vacuoles while a similar protozoan living in salt water
would not.