Contain structures that regulate and perform life functions.
Function and structure are related, because of a certain structure a living thing make contain makes the object function the way it does. ... The relationship of a structure and function is the structuring levels from molecules to organism ensure successful functioning in all living organism and living system.
Answer:
The answer is the integumentary system. Hope that helps! :)
The exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli. You can see more in wikipedia, or here: https://www.merckmanuals.com/home/lung-and-airway-disorders/biology-of-the-lungs-and-airways/exchanging-oxygen-and-carbon-dioxide
