| Which of the following is a correct set of homologous organs? |
| (a) Forelimbs of frog, bird and lizard |
| (b) Spine of cactus and thorn of bougainvillea |
| (c) Wings of bat and wings of butterfly |
| (d) Wings of a bird and wings of a bat |
Answer:
(a) Forelimbs of frog, bird and lizard
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