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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Q. Blood from head return by superior venacava to hearts

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Q. The arteries which supply blood to the arms include

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Q. Oxygenated blood leaves the heart from

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Q. Sudden increase in blood pressure can result arteries to

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Q. The cells which are responsible for response to foreign particles

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Q. Those arteries which supply blood to arms or forelimbs are

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Q. The walls of artery which are responsible for deposition of fatly substances are

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Q. Lymph contain no red blood cells as they are not able to pass through capillary walls due to their

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Q. The red blood cells may became bell shaped as they ran through

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