I'm not 100% sure but I think it's a. Hope that helps.
Pacer for sure you just got to trust me on this one
Answer: 6 Months
Explanation: A average baby is ready to start eating mashed food when they are about 6-7 months.
Answer:
Explanation:
inspiration 1. inspiratory muscles contract. ...
inspiration 2. thoracic cavity volume increases.
inspiration 3. lungs are stretched. ...
inspiration 4. intrapulmonary pressure drops.
inspiration 5. air flows into lungs down pressure gradient until pulmonary pressure is 0.