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VIBGYOR HIGH Third Preliminary Examination AY 2020-2021 BIOLOGY SCIENCE Paper 3 Grade: X Max. Marks : 80 Date : 19/03/2021 Time Allowed: 2 hours Answers to this paper must be written on the paper provided separately. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper. The time given at the head of this paper is the time allowed for writing the answers. ____________________________________________________________________ Attempt all questions from Section I and any four questions from Section II. The intended marks for the questions or parts of questions are given in brackets [ ]. This paper contains 11 printed pages -------------------------------------------------------------------------------------------------------------------SECTION I (40 Marks) (Attempt all questions from this section) Question 1 (a) Name the following: i. [5] The category of organisms that can be called natural purifiers of the air. ii. The apparatus to record the water uptake by the cut shoot. iii. The branch of renal artery which enters into the Bowman s capsule. iv. The membranes covering the brain and the spinal cord. v. A condition which results in abnormally long bones and long lower jaw bones due to hypersecretion of hormone produced by pituitary gland. 1
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