Question

During exercise, sensory receptors detect changes in oxygen and carbon dioxide levels in the blood. This information is then sent to the brain's medulla, which causes the heart to beat faster and increases the rate of breathing. Exercising also causes the nervous system to signal the pancreas and thyroid gland to release hormones which regulate metabolism.
Which statement is best demonstrated by this scenario?

A.
Nerves transmit and respond to every major system in the body.
B.
Exercise is important for the body to function properly.
C.
Increased heart rate and blood flow decrease oxygen supply.
D.
Hormones act as signal molecules between all body systems.

Answer 1

Answer:

Nerves transmit and respond to every major system in the body

Answer 2

Answer:

The correct option is Option B i.e. Exercise is important for maintaining the proper functioning of the body.

Explanation:

Exercise maintains the body oxygen supply and prevents over oxidation. This increases circulation, thereby properly removing the excretory materials from the body.

It also increases insulin secretion and workout reduces excess body fat that is harmful to the human body. Exercise increases the food uptake and absorption in the gastrointestinal tract. Thereby it maintains good gastric health. It increases oxygen supply to the brain.