Question

humans, like other organisms, require energy for growth and repair. when cells create atp for energy, carbon dioxide is produced as a waste product. how does the body respond to this process in order to maintain homeostasis?
a. the circulatory and digestive systems interact to move carbon dioxide to the stomach, where it helps to break down food.
b. the circulatory and respiratory systems interact to transport carbon dioxide to the lungs, where it is expelled from the body.
c. the nervous and urinary systems interact to move carbon dioxide to the kidneys, where it is absorbed into the bloodstream.
d. the digestive and respiratory systems interact to move carbon dioxide to the lower intestine, where it is transformed into methane.

Explanation:

• Option A: The circulatory system does not move carbon dioxide to the stomach, and carbon dioxide does not help break down food in the stomach.
• Option B: The circulatory system transports carbon dioxide (a waste product from cellular respiration) to the lungs. The respiratory system then expels carbon dioxide from the body during exhalation. This interaction helps maintain homeostasis by removing waste.
• Option C: The nervous system is not involved in moving carbon dioxide. Also, the kidneys are mainly involved in filtering waste (like urea) from the blood and regulating water - electrolyte balance, not carbon dioxide absorption.
• Option D: The digestive system is not involved in moving carbon dioxide. And carbon dioxide is not transformed into methane in the lower intestine.

Answer:

B. The circulatory and respiratory systems interact to transport carbon dioxide to the lungs, where it is expelled from the body.