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ICSE Class X Sample / Model Paper 2024 : Biology

6 pages, 80 questions, 29 questions with responses, 55 total responses,

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Podar International School ICSE, Nerul, Navi Mumbai

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December 24, 2023 Max. Marks: 80 ICSE X BIOLOGY (Science Paper 3) Preliminary Assessment I SET A [As per the scope of syllabus 2023 2024] Time: 2 Hrs. General Instructions 1. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper. 2. The time given at the head of this paper is the time allowed for writing the answers. 3. 4. Section A is compulsory. Attempt any four questions from Section B. The intended marks for questions or part of questions are given in brackets []. SECTION A (40 Marks) [Attempt all questions from 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) (i) The chromosomes which are exactly similar and bear same gene at same loci: (a) heterologous (b) hemizygous (c) homologous (d) heterozygous (ii) (a) (c) [15] The process of expulsion of semen from the urethra is called: insemination (b) ejection urination (d) ejaculation (iii) A hormone secreted in female to facilitate parturition: (a) progesterone (b) testosterone (c) oxytocin (d) FSH and LH (iv) In tall trees, most of the transpiration occurs through: (a) lenticels (b) cuticle (c) bark (d) stomata (v) (a) (c) The hyposecretion of which hormone causes cretinism in children: Vasopressin (b) Oxytocin Adrenal (d) Thyroid (vi) Assertion (A) : Reason (R) : Page |1 The phenomena involving the movement of plant part in response to touch is called thigmotropism. Plants such as sweet peas, Cuscuta and vines have tendrils which coil around other parts in response to one sided contact or touch.

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