Question

the rate of breathing is controlled in the:
a medulla
b hypothalamus
c pons
d cerebellum

Explanation:

The medulla oblongata contains the respiratory center which regulates the rate and depth of breathing. The hypothalamus is involved in functions like regulating body temperature and hunger. The pons helps in the control of breathing but mainly modulates the medulla's functions. The cerebellum is mainly for motor control, balance, and coordination.

Answer:

A. Medulla