Which of the following animals have scattered cells with cell tissue grade organisation? (a) Sponge (b) Hydra (c) Liver fluke (d) Ascaris
Option B Hydra, has tissue level of organization. Its body is multicellular and the cells occur in 2 distinct layers or tissues of specialized cells. Sponges have cellular level of organization. Liver fluke and Ascaris have organsystem level of organization.
