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ICSE Class X Prelims 2023 : Biology (GEMS Modern Academy, Dubai)

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PRELIMINARY EXAMINATION 2022 - 23 BIOLOGY GRADE: 10 DATE: 6/1/23 TIME: 2 HOURS MAX. MARKS: 80 ____________________________________________________________________________ [The time stated above is the time allowed for writing the examination. In addition, the first 15 minutes will be the time given for reading the question paper] This question paper is divided into two sections. Section A is compulsory. Attempt any four questions from Section B. The intended marks for questions or parts of questions are given in brackets []. ____________________________________________________________________________ SECTION A (40 MARKS) (Answer all questions in this section) Question 1 Select the correct answers to the questions from the given options. (Do not copy the question. Write the correct answer only: [15] 1. The alternate form of a gene is a.Variation b. Heredity c. Mutation d. Allele 2. Adrenocorticotropic hormones stimulate the adrenal cortex to produce a. Testosterone b. Aldosterone c. Cortisol 3. Fertilisation of ova in human takes place in a. ovary b. Uterus c. Fallopian tube d. Adrenaline d. Vagina 4. This pressure facilitates filtration while urine is being formed a. hydrostatic pressure b. osmotic pressure c. blood pressure d. diffusion pressure 5. Circulation loop to provide oxygenated blood through the rest of body is classified as a. pulmonary circulation c. cardiac circulation b. systemic circulation d. lymphatic circulaiton Page 1 of 6

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