Every year americans spend billions of dollars on products and services related to
sport and fitness.
a. true
b. false

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

How much of the body is affected by chemotherapy

Amalignant tumor that originates within glandular tissue is called