An example of a breath-activated nebulizer is the:

Someone who uses ________ is tactful in communicating with others

a. apathy b. pity c. empathy d. discretion

Epithelium stands as a barrier to microbial invasion. Infection cannot occur without microbes getting past this anatomic barrier

A) First statement is true, second statement is false. B) First statement is false, second statement is true. C) Both statements are true. D) Both statements are false.