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  • (a) Differentiate between analogous and homologous structures. (b) Select and write analogous structures from the list given below :     (i)  Wings of butterfly and birds      

(a) Differentiate between analogous and homologous structures.

(b) Select and write analogous structures from the list given below :

    (i)  Wings of butterfly and birds  

    (ii)  Vertebrate hearts

    (iii) Tendrils of bougainvillea and cucurbita  

    (iv) Tubers of sweet potato and potato 

 

 

 

 
 
 
 
 

Answers (1)

(a)

HOMOLOGOUS STRUCTURES 

ANALOGOUS STRUCTURES 
 

1.Homologous structures have similar origin and basic structure but perform different functions in different organisms.  

1.Analogous structures are different in basic structure but perform same functions. 
 

2.They show divergent evolution. 

2.They show convergent evolution. 

3.They develop in related organisms. 

3.They develop in unrelated organisms. 

4.Examples- Vertebrates hearts or brains. 

4.Examples- wings of butterfly and birds 

b) Wings of butterfly and birds and tubers of sweet potato and potato are analogous structures. 

Posted by

Priyanka Kumari

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