Identify the given organisms (P-T) and select the incorrect statement regarding them.

(i) Organisms P, Q and T show tissue level of body organisation.
(ii) Organisms P, S and T are triploblastic animals.
(iii) Organisms R, S and T are eucoelomates.
(iv) Organisms P, R, S and T' possess notochord at some stage of their life.

Options

A. (i) and (iii) only
B. (i), (ii) and (iv) only
C. (i) and (ii) only
D. (i), (ii) and (iii) only

Answer

B

Explanation

In the given figures, organism P is Euplectella (Phylum Porifera), organism Q is Hydra (Phylum Coelenterata), organism Ris Palaemon, (Phylum Arthropoda), organism S is Octopus (Phylum Mollusca) and organism T is Asterias (Phylum Echinodermata). Organism P shows cellular level of body organisation, shows tissue level of body organisation whereas R, S and T show organ system level of body organisation. Organism Q shows diploblastic organisation while R, S and T show triploblastic organisation. Notochord is possessed by organisms of Phylum Chordata only.