What is Homologous Structures _ It’s Meaning and Definition Structures derived from a common.
What is Homologous Structures _ It’s Meaning and Definition Structures derived from a common.
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Contents [hide]
- 1
What are Homologous Structures?- 1.1
Meaning and Definition - 1.2
Definition: - 1.3
Explanation: - 1.4
Examples: - 1.5
In Hindi (हिंदी में): - 1.6 Key Concept in Evolution:
- 1.7 What is Homologous Structures _ It’s Meaning and Definition Structures derived from a common.
- 1.8 Homology in Comparative, Molecular, and Evolutionary …
- 1.9 Homologous Structures
- 1.10 Homology
- 1.1
What are Homologous Structures?
Meaning and Definition
Definition:
Homologous structures are anatomical features that are derived from a common ancestor, even if they perform different functions in modern organisms.
Explanation:
- These structures may look different externally and may be used for different purposes,
but internally, their basic structure and origin are similar. - This is strong evidence of evolution and common ancestry.
Examples:
| Organism | Structure | Function |
|---|---|---|
| Human | Arm | Lifting/grabbing |
| Cat | Front leg | Walking |
| Whale | Flipper | Swimming |
| Bat | Wing | Flying |
All of these limbs have the same basic bone structure (humerus, radius, ulna, etc.), showing they evolved from a common ancestor.
In Hindi (हिंदी में):
Homologous Structures वे रचनाएँ होती हैं जो सामान्य पूर्वज (common ancestor) से उत्पन्न हुई होती हैं, भले ही उनका कार्य आज अलग-अलग हो।
उदाहरण: मनुष्य का हाथ, बिल्ली का पैर, चमगादड़ का पंख, और व्हेल का फ्लिपर — सभी में हड्डियों की संरचना समान होती है।
Key Concept in Evolution:
Homologous structures are used to show divergent evolution — where organisms evolved differently from a common ancestor.
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