(a) What is the effect of a larger voice box in grown up boys ?
(b) What is the effect of a smaller voice box in grown up girls ?
What is Adam's Apple ? Which of the two usually have an Adam's Apple : grown up boys or grown up girls ?
State one change in the body shape of grown up boys and one change in the body shape of grown up girls which makes them look different.
What is the common name of the bulge (or projection) at the front of throat in grown up boys ?