(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
Analogous OrgansHomologous Organs(i) Structurally dissimilar(i) Structurally similarthough perform similarbut perform different function. function.(ii)They are a result of(ii)They are a result ofconvergent evolution.divergent evolution.(iii)Example: Wings of(iii)Example: Wings of BatButterfly and Birds.and Fore limb of horse.
(b) Analogous structures present in the list are 
(i) Wings of butterfly and Birds.
(ii) Tuber of sweet potato and potato.