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ICSE Class X Notes 2020 : Select

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Soham Multani
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Rao IIT Academy/ ICSE - Board 2018_Std X_Biology_QP + Solutions JEE | MEDICAL-UG | BOARDS | KVPY | NTSE | OLYMPIADS X - ICSE BOARD - 2018 BIOLOGY - QP + SOLUTIONS Date: 26.03.2018 SECTION - I (40 Marks) Attempt all questions from this Section Question 1 (a) Name the following : (i) The organization which procures and supplies blood during an emergency. (ii) The blood vessel which supplies blood to the liver. (iii) The number of chromosomes present in a nerve cell of a human being. (iv) The layer of the eyeball that forms the transparent Cornea. (v) The wax-like layer on the epidermis of leaves which reduces transpiration. Ans. (i) Red Cross Topic:Health organisations_Subtopic:International bodies_ Level:2_Std. X__ICSE Board / Biology (ii) Hepatic artery Topic:Circulatory system_Subtopic:Main blood vessels_ Level:2_Std. X__ICSE Board / Biology (iii) 46 (23 pairs) Topic:Cell cycle, Cell division_Subtopic:What are chromosomes_ Level:1_Std. X__ICSE Board / Biology (iv) Sclerotic layer (Sclera) Topic:Nervous system_Subtopic:Sense organs_ Level:2_Std. X__ICSE Board / Biology (v) Cuticle Topic:Transpiration_Subtopic:Culticular transpiration_ Level:1_Std. X__ICSE Board / Biology (b) Choose the correct answer from each of the four options given below: (i) The number of Spinal nerves in a human being are : (A) 31 pairs Ans. (B) 10 pairs (C) 21 pairs (D) 30 pairs (A) 31 pairs Topic:Nervous system__Subtopic:Nerves_ Level:1_Std. X__ICSE Board / Biology 1 1

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