Q. Heart of class cyclostomatous have a heart with one

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Q. Free living specie that feed on small animals and bodies of deads and decaying is

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Q. Birds are

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Q. Eutheria is class of mammals which include placental mammals including

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Q. Class cyclostomatous includes living vertebrates which are most primitive and lack

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Q. Cleavage of zygote is spiral and determinate in

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Q. In jelly fish, poly is reduced and medusae is

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Q. Red blood cells of mammals are

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Q. Presence of bony brain in chordates is called as

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Q. In America, roads are made by using tar mixed with shells of

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Q. All biologists believe that virtually, all animals have been evolved from

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Q. Body of sponges contain special out layer made up of cells called

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Q. Flagellated collar cells constitutes layer called

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Q. Blood is prevented to enter in ventricle from lungs by

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Q. In fish arteries carry blood from heart to

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Q. The sound dub is produced during

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Q. The blood is supplied to one to each hind limb by the artery named as

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Q. In double circulatory system the function of veins is to carry

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Q. The left and right side of the mammalian heart is separated by

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Q. Blood is distributed to all body parts except lungs by

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