Q. A solid mass of blood constituent which acts as a barrier in blood vessel is called

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Q. Spleen, thymus, tonsils and adenoids produces

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Q. Constriction and hardening of arteries occur in a condition known as

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Q. Granulocytes include

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Q. Cholesterol acts as a precursor of

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Q. Specificity destruction of antigen is done by

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Q. Transpiration that occurs from vital organ lenticels present on stem is termed as

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Q. If higher temperature persists for a longer periods of time, plant may

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Q. Antibodies which are present in lymphocytes are synthesized by vertebrates in response to antigens are

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Q. Movement of water molecules along cell walls of xylem vessels is due to a force called

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Q. Thymus gland makes T-cells

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Q. ATP and proteins is supplied to companion cells via

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Q. Defense against diseases is facilitated by help of

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Q. Feed of macrophages and neutrophils are

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Q. Secretory glands of plants are called

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Q. Non-cellular part of hydra is

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Q. Bean-shaped cells in a leaf which encloses stoma is

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Q. Systemic arch disappears in

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Q. Antibodies are manufactured by

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Q. Over extension of heart is prevented by

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