01 Phylum _____ contains exclusively free-living marine organisms.

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02 Which of the following is the largest animal phylum?

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03 Which organism has a three-chambered heart?

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04 Which organism does not have a genetically predetermined sex in the example…

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05 A water vascular system is found in _____.

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06 Which of the following has the maximum number of legs?

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07 Which group has a three-chambered heart?

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08 Which of the following is not related to phylum Mollusca?

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09 Insects have a network of air tubes for gas exchange. These are…

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10 Starfish belongs to phylum _____.

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