Question

2. The coordinates all the
activities of our body.
(a) brain (b) heart.​

Answer 1

Answer:

The brainstem takes in, sends out, and coordinates the brain's messages. It also controls many of the body's automatic functions, like breathing, heart rate, blood pressure, swallowing, digestion, and blinking.

Answer 2

Answer:

brain

Explanation:

because Brain have power to control heart which is involuntary action