Q. Exchange of gases in bark of plants Is attained by help of

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Q. Necrosis following death of surrounding neural tissues in blood vessels in brain can block and leads towards

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Q. Vein which collects blood from liver is known as

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Q. When a person becomes ill due to infection and survives, this activity is called

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Q. Passive immunity is developed by injecting antibodies in form of

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Q. Animals maintains concentration of salts and water in their body by adopting

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Q. Red blood is formed at

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Q. Process of flow of sap from injured or cut parts of plant with a considerable force is called

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Q. Fishes heart work only in one direction thus called

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Q. Busra of Fabricius is found in wall of cloacae opening of young bird which proved role of it in

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Q. Electrical impulses are sent to atrial muscles to contract both

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Q. Blood vessels which carry blood away from heart are known as

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Q. Plasma is composed of dissolved

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Q. Fluid which is transmitted between blood bad interstitial fluid is called

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Q. Relaxed period of heart chambers is known as

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Q. Successive cells in pericardial muscles are separated with help of junctions called as

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Q. People living at high altitudes have

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Q. While training for long distances, it is better to train at

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Q. Phagocytosis refers to

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Q. In each villus, the sugars and amino acids are diffused in

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