Have a blessed day love yall ❤❤❤ im quitting this app Free points Most touching quote gets brainliest (no plagiarizing ) Don't answer if you've answered my previous questions

Astructural difference between the trachea and esophagus that prevents the trachea from collapsing is the presence of: a) smooth muscle b) skeletal muscle c) respiratory cilia d) rings of cartilage

Which of the following is the definition of ventilation as it relates to the respiratory system?

How much do the tanakas spend on health insurance premiums each year