Fins of fishes and feathers of birds are homologous?
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Homologous organs :
Similar structure , different function
Developmental origin is same
Divergent evolution
Example :
Flipper - whale
Wing - bat
Fore limb -horse
Paw - cat
Hand - human
Thorn - bougainvillaea
Tendril - cucurbita
Analogous organ :
Same function , different structure
Convergent evolution
Not anatomically similar
Example :
Wings of a butterfly and wings of a bird.
Flippers of penguin and dolphin
Eye of an octopus and a mammal ( both differ in retinal position but function is same )
Sweet potato( root modification) and potato ( stem modification) - both help in storage of food.
Hope it is clear
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