Explain the roles of visual pigments. trace a nerve impulse from the retina to the visual cortex.

If the singular term ends in -us, the plural is usually formed by changing the ending to

What is a common risk associated with tobacco?

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