Q. Sharks and rays are present in group of class

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Q. Umbrella like form which are free swimming and possess sexual reproduction are

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Q. Common name for Enterobius vermicularius is

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Q. Sleeping sickness and skin diseases are caused by Tsetse fly which transmits chemical called

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Q. A typical marine sponge is

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Q. Sponges are used in surgical operations for absorption of

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Q. Group of animals which have bilateral symmetry are known as Grade

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Q. A fresh water sponge is

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Q. Nematodes lack respiratory system and

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Q. Adult Urochordates are sessile and covered by a layer called

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Q. Internal buds which develop into new sponges are called

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Q. Centipede and millipedes are examples of class

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Q. Notochord is a rod like semi rigid body of

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Q. Chitinous cuticle is secreted by

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Q. Animals which lack tissues organized into organs and are asymmetrical, are from sub kingdom

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Q. Balanoglossus and Saccoglossus belongs to phylum

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Q. Class Arachnida has special appendages on their body called as

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Q. Secretions hardened in polyps and covered by stony cup in

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Q. Family of Octopus is called

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Q. Earliest known bird is

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