Vitamin C promotes bone and tooth formation by improving collagen development and calcium absorption

a. True
b. False
Indicate whether the statement is true or false


True

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What three basic elements are necessary for a communicable illness to survive and spread?

What will be an ideal response?

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To be effective, illustrations in children's books must

A. be colorful. B. be placed one on each page. C. contribute to the story's meaning. D. be realistic and true-to-life.

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In an introductory science class, 80 student volunteers were randomly assigned, in equal number, to take a class for a letter grade or for a simple pass/fail grade. At the end of the semester, the mean achievement score for the letter grade group was 86.2 and for the pass/fail group 79.8 . The calculated t = 4.60, p<.001 . The results should appear in a published report as follows:

a. Introductory science students have significantly higher achievement scores when awarded letter grades rather than a simple pass/fail grade. b. There is no significant difference in the achievement scores of introductory science students when awarded letter grades or a simple pass/fail grade. c. Students are more motivated to achieve when given letter grades rather than simple pass/fail grades. d. Instructors should use letter grades rather than pass/fail grades for introductory science courses. e. a and d

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Vocabulary knowledge plays a powerful role in ________ in a content area

Fill in the blank with correct word.

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