A) Bilateral symmetry and external skeleton
B) Mantle and gill
C) Shell and nonsegmented body
D) Mantle and nonsegmented body.
Correct Answer: D
Solution :
The body is surrounded by a secretory fold of body wall called mantle or pallium and nonsegmented body etc. is the characteristic feature of mollusca.
You need to login to perform this action.
You will be redirected in
3 sec
