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Given Alongside is a Diagram Depicting a Defect of the Human Eye. Study the Same and Then Answer the Questions that Follow: (I) Identify the Defect. (Ii) Name the Parts Labelled 1, 2 - Biology

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Question

Given alongside is a diagram depicting a defect of the human eye. Study the same and then answer the questions that follow: 
(i) Identify the defect. 
(ii) Name the parts labelled 1, 2 and 3. 
(iii) Give labelled two possible reasons for this eye defect. 
(iv) Draw a labelled diagram to show how the above mentioned defect is rectified. 

Answer in Brief
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Solution

(i) Myopia. 
(ii) 1. Vitreous humor 
2. Fovea 
3. Optic nerve 
(iii) 1. Lengthening of the eyeball from front to back. 
2. Lens is too curved. 
(iv) Correction of Myopia: 

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Chapter 9: Nervous System - Exercise 5 [Page 119]

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Frank Biology II [English] Class 7 ICSE
Chapter 9 Nervous System
Exercise 5 | Q 4 | Page 119

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