Final answer:
True, exercise significantly affects the cardiorespiratory systems by improving cardiovascular health and causing physiological changes such as increased heart and breathing rates.
Step-by-step explanation:
The statement that exercise affects cardiorespiratory systems is TRUE. Exercise has a significant impact on both cardiovascular and respiratory health. Engaging in regular physical activity reduces several risk factors for cardiovascular disease, such as hypertension, bad cholesterol levels, and excess body weight, while improving good cholesterol levels and insulin sensitivity. Furthermore, when a person exercises, their heart rate and breathing rate increase, sweat glands become active, and the digestive system's activity may be reduced. This adaptation is part of the body's homeostatic response to meet the increased oxygen and nutrient demands during exercise. Additionally, exercise causes hyperpnea, an increased rate and depth of breathing, which is initiated by neural mechanisms at the start of physical activity to meet the body's anticipated oxygen needs.