Q. Extensions of lungs which are extended in bones are known as

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Q. A fossil was found in Texas which was an early reptile, is

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Q. Respiratory system of hemichordates is composed of

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Q. Mesentries are prominent in enteron of body of the

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Q. Asexual reproduction in sponge is done by process of

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Q. Pouched mammals are called

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Q. There are two types of muscles in annelids on basis of arrangement of

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Q. Setae are organs of

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Q. Oviducts and ovaries are both functional in

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Q. There is gelatinous layer mesenchyme which is present between pinachoderm and

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Q. Name Platyhelminthes means

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Q. Shedding of exoskeleton is called

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Q. Fishes keep themselves balance in water while swimming by its

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Q. Animals which possesses flame cells, excretory ducts and excretory pores are termed as

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Q. Multicellular animals are distinguish from unicellular by name

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Q. Birds have developed a thick muscular organ which helps in crushing of food called

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Q. Tape worm can regrow in beef. If its head remain inside intestine needs medication for complete removal, so physicians may also prescribe

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Q. Rasping tongue like structure present on body of molluscus is

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Q. Larynx and epiglottis is well developed and present in

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Q. Archaeopteryx was size of a

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