Question
What is blood platelet?
What is blood platelet?
Blood platelets occur in human blood. They are minute, colourless, biconvex and non-nucleated blood corpuscles. They help in clotting of blood at the site of injury.
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| Column-I | Column-II | ||
| P. | Nosema apis | I | New castie disease |
| Q. | Aspergillus fumigates | II | Nosema disease |
| R. | Berereline virus | III | Pebrine |
| S. | Nosema bombycis | IV | Grasserie |
| T. | Paramyxo virus | V | Stonebrood |
Name the most common method to prevent infection?
________ is supplied by water to plants.
What is the name of nitrogen fixing bacterium found in the root nodules of legumes?
Name the component present in marble which reacts with acids present in acid rain.