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Which type of research study compares disease rates among population groups, and attempts to identify related conditions or behaviors? A. placebo B. clinical trial C. case control D. epidemiological
Epidemiological research studies compare disease rates among population groups, and attempt to identify related conditions or behaviors.
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vanilla2bean|Points 1479|
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Asked 9/26/2012 10:53:35 AM
Updated 6/28/2014 4:46:13 PM
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This answer has been confirmed as correct and helpful.
Edited by Janet17 [6/28/2014 4:46:09 PM], Confirmed by Janet17 [6/28/2014 4:46:13 PM]
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Matter is needed to transfer thermal energy by A. conduction. B. convection. C. radiation. D. both a and b
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Updated 12/26/2014 2:29:04 PM
2 Answers/Comments
BOTH A and B. Matter is needed to transfer thermal energy by: conduction and convection.

Added 12/26/2014 2:24:16 PM
This answer has been confirmed as correct and helpful.
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thanks for the link
Added 12/26/2014 2:29:04 PM
The primary sugar in milk and dairy products is ___________. A. lactose B. fructose C. sucrose D. maltose
Weegy: The primary sugar in milk and dairy products is lactose. (More)
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Updated 8/7/2014 5:47:16 PM
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_____________ sweeteners are commonly found in sugar-free gum and mints. A. refined B. sugar alcohol C. natural D. nutritive
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Updated 8/7/2014 5:47:49 PM
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Which of the following occurs as a light wave bends when it passes from one medium into another? A. constructive interference B. refraction C. destructive interference D. reflection
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Updated 8/2/2015 5:47:24 PM
1 Answer/Comment
Refraction occurs as a light wave bends when it passes from one medium into another.
Added 8/2/2015 5:47:24 PM
This answer has been confirmed as correct and helpful.
Confirmed by Janet17 [8/2/2015 6:20:51 PM]
What best describes a diet-planning tool most often used for diabetic or weight-control diets? A. The Exchange Lists B. MyPyramid C. Eating Well with Canada’s Food Guide D. Dietary Reference Intakes
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Updated 8/15/2014 5:42:16 AM
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