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ICSE Class X Prelims 2023 : Biology (Royal Academy, West Medinipur) : Pre-Board

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Satyam Dey
Vidyasagar Shishu Niketan (VSN), West Medinipur
XI-XII Commerce

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Rojal Arademy Pre-Board Examination Class X Subject Biology Session: 2022 - 2023 Time: 2 Hrs. Full Marks : 80 Section - A [Attempt all questions from this section] Question 1. [15] Select the correct answers to the questions from the given options. [Do not copy the questions. Write the correct answer onlyl A. A muscular wall is absent in: i) Capillary ii) Venule ii) Arteriole iv) Vein B. Generally on which day ofthe menstrual cycle does ovulation take place? i) 1st day C. i) The number of chromosomes in a human skin cell are: 22 ii) 23 ii) 44 D. Cretinism and Myxedema are due to - ii) 5th day ii) 14h day i) Hypersecretion of thyroxine ii) HYpersecretion of thyroxine iv) 28 day iv) 46 ii) Hypersecretion of G.H. iv) Hyposecretion of G.H. E. Birth rate is the number of live births i) Per 100 people per year iii) Per 1000 people per year ii) Per 100 people per decade iv) Per 1000 people per decade F. Burning of waste substances usually at high temperature is - i) Land filling G. The information source for making proteins in the cell is - i) Chromosome i) Incineration i) DNA ii) Composting iii) Enzyme H. Which one of the following has cytoplasm but not nucleus? i) Xylem vessel I. Organ of Corti is present in Utriculus ii) Sacculus i) J. i) Sieve tube iv) Companion cell iv) Cochlea ii)22+Y chromosomes iv) 44+ XX chromosomes Accumulation of non-biodegradable level is known i) ii) incus iv) Nucleus After mitotic cell division, a female human cell will have - 1) 22 +X chromosomes iii) 44+ XY chromosomes K. ii) Tracheid iv) Segregation trophic Pollutions as pesticides in the food chain in increasing amount at each higher - i)Eutrophication ii) Biomagnification iv) Accumulation L. A person is unable to swallow after a head injury. Which part of his brain is responsible for this? i) Cerebral hemisphere ii) Diencephalon ii) Midbrain iv) Hind brain

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