A.Hollow body
B.Dermal papillae
C.Coelenteron
D.Choanocytes
Related Mcqs:
- Which of the following papillae on tongue do not have taste buds in mammals:
- Sponges are characterized by the presence of:
- Ellis established the animal nature of these animals on the basis of:
- Poikilothermy in the animals means:
- Hydra respires with the help of:
- Which of the following groups of characteristics of sponges could justify their animals nature by Ellis:
- Temperature regulation in animals involves:
- Sponges are primitive multicellular animals having:
- Aquatic animals are mostly ammonotelic because:
- A hollow sphere with uniform interior temperature and a small hole behaves very nearly as a
