Rebecca conducted a study on the effects of sleep deprivation for twelfth-graders during midterm exams. she followed two groups of five students each. after two grading periods, she turned in the data she collected. which two steps in the scientific process were left out of her study? a. conclusion and communication b. problem and hypothesis c. experimentation and summation d. research and analysis

I think the answer would be B. She never stated her hypothesis and her problem. Hope I didn't give you the wrong answer. :)

the answers would be

the first one and the second one

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.