Which step is a part of internal respiration? Oxygen rich blood is taken up by the tissues.

Air is inhaled through the nostrils.

Air is exhaled through the nostrils.

Gaseous exchange of oxygen and carbon dioxide occurs at the alveoli.

You notice a co-worker, john, putting pens and index cards into his bag. when he sees you watching, he shrugs his shoulders and says, "what? this is no big deal; it's just a few office supplies. the company won't even miss them, and besides, everybody themselves to the supply cabinet." john's response shows he does not demonstrate which workplace attitude? 1. dependability 2.punctuality 3.self-confidence 4.honesty