Phylum Arthropoda - Questions & Answers | Exam2Win

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261. Excretory organs are absent in

A. Asterias

B. Sepia

C. Unio

D. Pila

Explanation:

262. Doris is

A. Sea Lemon

B. Shipworm

C. Sea Hare

D. Pearl Oyster

Explanation:

263. Starfish does not possess

A. Mouth

B. Anus

C. Head

D. Arms

Explanation:

264. An echinoderm is

A. Torpedo Fish

B. Star Fish

C. Electric Ray

D. Shark

Explanation:

265. Water vascular system is a trait of

A. Porifers

B. Molluscs

C. Echinoderms

D. Arthropods

Explanation: