Question

Hi anyone online here to answer my question I wrote 10 min ago

Answer 1

but where is ur question

Answer 2

Freshwater amoebae experience a net diffusion of water into the organism.  This is caused by a higher solute concentration within the amoeba relative to the external environment, resulting in osmosis across the membrane in an effort to reach osmotic equilibrium.  Marine amoebae do not have contractile vacuoles because the solute concentration in seawater is higher outside of the membrane, so there is a net diffusion of water out of the organism.