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Phylum Arthropoda - Questions and Answers

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266. Echinoderms show
A. Bilateral symmetry
B. Radial symmetry
C. Asymmetry
D. None
Explanation:
267. Osphradium is meant for
A. Excretion
B. Nutrition
C. Grinding of food
D. Selection and rejection of food
Explanation:
268. Study of crustaceans is called
A. Limnology
B. Cardiology
C. Chondrology
D. Carcinology
Explanation:
269. Madreporite is associated with
A. Water vascular system
B. Canal system
C. Blood vascular system
D. Digestive system
Explanation:
270. Which one is mismatched pair
A. Apis indica …………Honey
B. Kerria laucca ……….. Lac
C. Bombax mori ……….. Silk
D. Pila globosa ………… Pearl
Explanation: