Select the correct answer. Which of the following describes that happens when inspiration occurs?
A. The diaphragm relaxes, increasing the size of the chest cavity.
B. Air moves out of the lungs.
C. The intrathoracic pressure decreases.
D. All of the above

According to the article, when our sleep/wake cycle breaks down, we are at an increased risk for all but which select one: a. respiratory illnesses b. dementia c. diabetes d. heart disease

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What link in the chain of transmission is described in the paragraph? sarah has been eating and sleeping poorly. she was just diagnosed with pneumonia. tests showed the illness was caused by streptococcus pneumoniae. in the chain of transmission, sarah is the (blank) , and streptococcus pneumonia is the (blank).