Q27 of 57 Page 48

Real organs are absent in

Coelenterates are multicellular, diploblastic and acoelomate animals having tissue level of organization i.e., they lack true organs, Mollusca, Arthropoda and Echinodermata have organ level of organization.

More from this chapter

All 57 →
25

The book Systema Naturae was written by

 26

Karl Von Linne was involved with which branch of science?

 28

Hard calcium carbonate structures are used as skeleton by

 29

Differentiation in segmental fashion occurs in