Q113 of 525 Page 254

Name those phyla in which circulatory system is open and body cavity is filled with blood.

Phylum Arthropoda and phylum Mollusca have open circulatory system.


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Which is second largest phylum of Invertebrata.

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What is literal meaning of (a) Arthropods; (b) Mollusca.

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Name the excretory organ of (a) Crab; (b) Insect.

 115

Which type of eye is present in insects?