Name the following
(a) Organism in which external ear (pinna) is present (b) Organism in which nictitating membrane is present.
(a) Human being; (b) Frog.
Which of the following is the correct group of vestigial organs in man ?
a) Nictitating membrane, ear muscles, eyelids and coccyx
b) Appendix, coccyx, ear muscles and elbow joint
c) Wisdom tooth, coccyx, body hair and ear muscles
d) Wisdom tooth, body hair, Nictitating membrane and vermiform appendix
The organ of corti is a structure present in
(a) external ear (b) middle ear
(c) semi-circular canal (d) cochlea