(a)[3]
Name: the gas released by Rhabdostyla the process that releases the gas the way the gas is removed
(b)[3]
Explain, using the term water potential, why Rhabdostyla needs to get rid of excess water.
(c)[3]
Explain the results shown in Fig. 4.2.
(d)[3]
Suggest why single-celled organisms with cell walls do not have contractile vacuoles.