Which baseline activities are not feasible to replace? Please give examples and why there not able to be easily replaced. ( One example is fine too)

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 an argument against buying local fruits and vegetables?

Which of the following is an important part of good posture? a. slumped shoulders b. arched back c. feet shoulder-width apart d. belly out