Phylum Arthropoda - Questions & Answers | Exam2Win

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231. Class bivalvia is characterized by

A. Presence of tentacles around mouth

B. Absence of head

C. Coiled shell

D. Absence of gills

Explanation:

232. Ink gland occurs in

A. Asterias

B. Sepia

C. Pila

D. Fasciola

Explanation:

233. Eyes of Pila/mollusks occur over

A. Pseudopodia

B. Ommatophores

C. Cephalic tentacles

D. Both B and C

Explanation:

234. Which molluscan group is primarily used in pearl production?

A. Pelecypods

B. Gastropods

C. Cephalopods

D. Monoplacophorans

Explanation:

235. Housefly cannot take food unless it is in

A. Digested state

B. Liquid state

C. Semisolid state

D. Solid state

Explanation: