Question

why is the digestive system important?
choose one option
a it carries blood through the body to bring oxygen, water and nutrients to cells.
b it changes food into molecules that cells can use for energy, growth and healing.
c it regulates the functions of all the other body systems.
d it interprets information provided by the senses and sends messages throughout
the body.

Explanation:

The digestive system’s core function is breaking down food into absorbable nutrients (molecules) that cells use for energy, growth, and repair. Option A describes the circulatory system, C describes the endocrine/nervous systems, and D describes the nervous system. Thus, B is correct.

Answer:

B. It changes food into molecules that cells can use for energy, growth and healing.