Studies show that in the United States, each employee spends an average of how many hours per year on personal calls during work hours?

Which of the following is a characteristic of active listening?

a. Making assumptions about what the speaker is saying b. Thinking of other things while someone else is speaking c. Focusing on the speaker d. Completing another person's sentences

Which of the following membranes is made of PLA (poly-DL-lactide)?

A) BioMend B) Reguarde C) Epi-Gide D) BioGide