Question

which of the following best describes the relationship of the trachea, bronchioles, and alveoli?

a. they work together to transport nutrients.

b. they work together to regulate body temperature.

c. they work together to maintain the oxygen level in the blood.

d. they work together to store fluids to prevent dehydration.

Explanation:

The trachea, bronchioles, and alveoli are parts of the respiratory system. The respiratory system's main function is gas exchange, which involves taking in oxygen and releasing carbon dioxide. Transporting nutrients (A) is done by the circulatory system. Regulating body temperature (B) involves systems like the integumentary and circulatory systems. Storing fluids to prevent dehydration (D) is related to the excretory or digestive systems. The respiratory structures work together to get oxygen into the blood (maintain oxygen levels), so option C is correct.

Answer:

C. They work together to maintain the oxygen level in the blood.