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Wing of pigeon is homologous to
a) Ear of bat
b) Wing of a butterfly
c)Foreleg of horse
d)Tail of rabbit

Answer
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Hint Homologous organs are those organs which are same in the anatomical structure but perform the different function. These homologous organs have an evolutionary similarity among them. They have evolved from a basic structure and have attained their current structure.

Complete answer: Wings of pigeon are homologous to the foreleg of the horse. They have the same anatomical structure but have different functions. The bones present in the wings are the same as that present in the foreleg of the horse. The wings of the birds are used to fly and they are their forelimbs. In the horses, their forelimbs are used for walking and running purposes. Both wings and the foreleg are part of the forelimbs of the organism making them a homologous structure.

Additional information: The wings of the bird and the bat are analogous organs. Both of them perform the same function of flying but they have different anatomical structures. The wing of the bat is the skin that has extended and has covered the elongated fingers. It is not considered a proper wing. The analogous structures are those which have different anatomical structures but perform the same function. Similar is the condition of the wing of the butterfly and the wing of the pigeon. The wing of a butterfly has a different structure as it is an insect. So, when the wing of insects and birds are compared, they are placed in the analogous category.
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So, the answer is ‘foreleg of the horse’.

Note: The human hands are also homologous to the wings of the pigeon and foreleg of the horse. Our hand posse’s same anatomy as that of the bird and horse but the use of our hands is in picking up things, writing and are not used for running or flying.