A) wings of butterfly, flying fish and bird
B) tails of scorpion, bird and monkey
C) stings of bee, scorpion and fangs of snake
D) paddles of whale, arms of man, wings of bat.
Correct Answer: D
Solution :
: Homologous structures are those which have the same embryonic origin and basic structure, though they may or may not perform the same function. Homologous structures shows that the animals which possess them have common ancestry and show evolution by divergence from the ancestral type. The limbs of all vertebrates have a common structural plan having the same bones, muscles, blood vessels and nerves. The fore limbs of man are used for prehension, wings of bats used for flight while the flippers of a whale are used for swimming.
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