A qualifying circumstance code for utilization of controlled hypotension is:

Whose writings, dating back to around 300 BCE, classified plants according to their methods of growth, locales, sizes, and practical uses?

A) Dioscorides B) Pedanios C) Theophrastus D) Galen

The immune system is composed of specialized cells and molecules

a. True b. False Indicate whether the statement is true or false