Multiple choice Which of the following is a correct set of vestigial organs? Ileo-caecal valve of man, wings of birds and caudal fins of fish Patygium of bats, scales of snakes and carapace of turtles Nails of man, premolar of man and ileum of all vertebrates Wings of kiwi, splint bone of horse and hind limbs of python Reveal answer Fill a bubble to check yourself D Correct answer Explanation Wings of kiwi, splint bone of horse and hind limbs of python are vestigial organs.