What element does the cell need in order to NOT dehydrate and die?

Skin cancer affects approximately ________ Americans each year

A) 80,000 B) 100,000 C) 800,000 D) 1 million

According to the Fitts and Posner model, the stage of learning during which the learner makes a large number of errors and tries to answer a lot of "how to" questions is the ________ stage.

Fill in the blank(s) with the appropriate word(s).