Chinchillas nearly became extinct in the wild state, but were revived as a ____________________raised animal

The cause of esophageal varices can be attributed to:

A) pulmonary hypertension. B) portal hypertension. C) pulmonary hypotension. D) portal hypotension.

Disadvantages of using compressed O2 cylinders in the home include which of the following? 1. High-pressure hazards 2. Limited volume of O2 3. Gas waste when not used 4. Need for frequent deliveries

a. 1 and 3 only b. 1, 2, and 4 only c. 2 and 4 only d. 2, 3, and 4 only