Answer the following :
(a) Which part of the ear determines the pitch of a sound ?
(b) Which part of the human brain is the most developed ?
(c ) Which part of our central neural system acts as a master clock ?

Explanation

(a) Cochlea determines the pitch of a sound .
(b) Forebrain is largest and the most developed part of the human brain .
(c ) Hypothalamus acts as a master clock of the human body .