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Phylum Arthropoda - Questions and Answers

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256. Which echinoderm is fresh water?
A. Asterias
B. Pentaceros
C. Astropecten
D. None of the above
Explanation:
257. A spider spins the web by means of a secretion of
A. Abdominal glands
B. Salivary glands
C. Thoracic glands
D. Mouth
Explanation:
258. Which gives the lily-like appearance?
A. Brittle star
B. Pentaceros
C. Antedon
D. None of the above
Explanation:
259. Which is not correctly matched?
A. Mollusca - Pseudocoel
B. Annelida – Chloragogen cells
C. Echinodermata – Water vascular system
D. Cnidaria - Nematocysts
Explanation:
260. Cilia of gills in bivalve help in
A. Reproduction
B. Swimming
C. Feeding
D. All the above
Explanation:
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