Which piece of protective breathing apparatus has the hand wheel checked for damage during weekly inspection?

A large water drop surrounded by an oil formation that can be found in the preparation of PLOs is called a __________

A) Tween 80 B) PEG 400 C) lecithin D) micelle

In the central nervous system, injured neurons:

a. Are not replaced b. Grow back (regenerate) c. Recover their function with time