Q. Family of Octopus is called

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Q. Earliest known bird is

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Q. Gases which swim bladders can fill in their Pharynx are Oxygen, CO2 and

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Q. Gastrovascular cavity for entry of food as well as removal of waste constitutes sac like

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Q. Mode of transport in diploblastic animals is

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Q. Exoskeleton appears on dorsal side of Arthropods in form of

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Q. A layer made of polysaccharide which is non-living, vascular and secreted by epidermis is called

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Q. Hydra and obelia are

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Q. 'little ring' is common name for organism of Phylum

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Q. Mode of fertilization in class Pisces is

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Q. Electric shock which can stun a prey is specialized feature of

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Q. Class amphibian, reptilian, aves and mammalian belong to sub-phylum called

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Q. Abdominal pouch of class metatheria is called as

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Q. In Platyhelminthes, respiratory and circulatory system are

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Q. Cnidarians are usually found in two basic forms polyps and the

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Q. Single mouthed sac like digestive cavity in cnidarian is called

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Q. Small pores which help water to enter body of sponges are called

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Q. Giant Squid is largest invertebrate

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Q. A single rotting apple may contain an estimated number of worms i.e.,

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Q. Gills of bony fishes are covered by

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