Refer to figure 31.18 and the chapter content to answer the following questions.

1. Using the Survey the Landscape figure in the chapter introduction and figure 31.18, describe how the respiratory system helps an animal to maintain homeostasis.

2. Add O₂ and CO₂ to the concept map; connect these terms with body cells, blood, and alveoli.

3. Add terms to the concept map to explain the pressure changes that occur during inhalation and exhalation.

Figure 31.18

Transcribed Image Text:

Respiratory system consists of Upper respiratory tract Lower respiratory tract includes includes Nose Pharynx Larynx Trachea Bronchi Lungs contain exchanges gases with exchange gases with Body cells Blood Alveoli -