1. Besides Annelida and Arthropoda metamerism is found in
(a) Cestoda                  (b) Acanthocephala               (c) Chordata                  (d) Mollusca

2. Identify the correct characteristic feature shown by the given figure?

(a) Diploblastic in nature.
(b) Having radially symmetrical body.
(c) Dioecious with direct development.
(d) Presence of sensory tentacles on anterior head region.

Dear student,            
Please find below the solution to the asked query         
1. Option (c) is correct
Besides Annelida and Arthropoda metamerism is found in Chordata. This is because along the anterior-posterior axis, there is repetition of successive homologous structures in Chordata.

2. Option (b) is correct. It possess radially symmetric body.

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