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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 10

Higher Order Thinking Skill (HOT) Arun was playing in the garden. Suddenly he saw a dragon fly sitting on a plant. He observed the wings of it. He thought it looked similar to a wing of - Science

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Question

Higher Order Thinking Skill (HOT) 

Arun was playing in the garden. Suddenly he saw a dragon fly sitting on a plant. He observed the wings of it. He thought it looked similar to a wing of a crow. Is he correct? Give reason for your answer.

Short Note

Solution

No. He is not correct. Both crow and dragonfly have the same function of flying with wings. But it’s the origin (basic structure) is different. Dragonfly wing is the membranous extension. But the wing of the crow is the modification of forelimb.

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Chapter 19: Origin and Evolution of Life - Evaluation [Page 284]

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Samacheer Kalvi Science [English] Class 10 SSLC TN Board
Chapter 19 Origin and Evolution of Life
Evaluation | Q VIII. 1. | Page 284
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