Classify the following as examples of homology and analogy- (i) Hearts of fish and crocodile (ii) Wings of butterfly and birds (iii) Eyes of Octopus and Mammals (iv) Tubers of potato and Sweet potato (v) Thorns of Bougainvillea and spines of Opuntia (vi) Thorn of Bougainvillea and tendrils of cucurbits.

Answers (1)

Analogy- 

Wings of butterfly and birds
Eyes of Octopus and Mammals
Tubers of potato and Sweet potato
Thorns of Bougainvillea and spines of Opuntia 

Homology- 

Hearts of fish and crocodile
Thorn of Bougainvillea and tendrils of cucurbits

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