Which of the following about mollusca is incorrect a

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48. Which of the following about Mollusca is INCORRECT?A.The mantle cavity is large which occupies most space in the visceral mass B.The dorsal wall forms a mantle to enclose the mantle cavity Answer: A
Main Characteristics of MolluscaBasic body plan: bilateral symmetry, unsegmented and coelomate, but the coelom is small and reduced to a small cavity around the heart.Ventral body is specialized as a muscular foot for creeping locomotion;Dorsal body wall forms a mantle, which encloses the mantle cavity containing gills (aquatic forms) or lungs (terrestrial forms);Some species have a calcareous shell, which protects the soft body and internalorgans; the shell is lost in more derived forms.The mantle cavity is small which only occupies a little space in the visceral mass.
49. What is the larva of Xiphosura called?
50. What is the larva of Cirripedia called?
A
51. Which of the following about parasitic Platyhelminthes is CORRECT?

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