561 When a freshwater protozoan, possessing a contractile vacuole, is placed in a glass containing marine water, the vacuole will?
563 The given statements describes a group of organisms I. The pellicle is composed of fibrous elastic protein lipid or carbohydrates and maintains a definite shape II. They have two flagella short and a long one. Each flagellum arises from a basal granule III. They are connecting link between plants and animals Which of the following group is referred here?
