CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Chapter 21, Problem 14TYK
SCIENTIFIC THINKING Consider the relationship between correlation and causation with respect to some pairs of human traits. For example, are freckles and red hair correlated? Is there causation? How does this concept relate to the study of human nutrition? Can you name examples of correlation in humans with respect to obesity? Explain each answer.
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Chapter 21 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 21 - Label the parts of the human digestive system...Ch. 21 - Prob. 2CCCh. 21 - Earthworms, which are substrate feeders, a. feed...Ch. 21 - Prob. 4TYKCh. 21 - Which of the following vitamins is mismatched with...Ch. 21 - Which of the following statements is false? a. A...Ch. 21 - Why is it necessary for healthy vegetarians to...Ch. 21 - A peanut butter and jelly sandwich contains...Ch. 21 - Use the Nutrition Facts label to the right to...Ch. 21 - How might our craving for fatty foods, which is...
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- Vegetarian diets are associated with a lower risk of obesity and diabetes as well as other chronic conditions (Marsh, Zeuschner, & Saunders, 2012). Clearly a vegetarian diet can be a healthy one, but can a vegetarian diet lack nutrients? If so, which nutrients may be lacking? How could these nutrients be measured in the body to determine if someone is deficient in them? Are there vegetarian foods that provide these nutrients or would supplementation be necessary? Are there any interactions to be aware of with the supplements that a vegetarian may take?arrow_forwardThe CDC states "The estimated annual medical cost of obesity in the U.S. was $147 billion in 2008; the medical costs for people who are obese were $1,429 higher than those of normal weight." Question: What would be a good policy that would help align American life away from obesity?arrow_forwardObesity is a serious health problem for many Americans. Several popular diet plans advocate low-carbohydrate diets. Most low-carb dieters compensate by eating more protein and fat. What are the advantages and disadvantages of such a diet? Should the government regulate the claims of diet books? How should the claims be tested? Should diet proponents be required to obtain and publish data before making claims?arrow_forward
- What study design would you use to further investigate the association between the number of fast-food restaurants in a community and obesity among the children living in that community.arrow_forwardYou are reviewing a research article on obesity and weight loss and asked to identify the independent and dependent variables and a potential extraneous variable. Match the examples in the left column with the appropriate variables in the right column: 1. Online exercise and nutrition program: CHOOSE ONE INDEPENDENT VARIABLE DEPENDENT VARIABLE EXTRANEOUS VARIABLE 2. weight loss CHOOSE ONE INDEPENDENT VARIABLE DEPENDENT VARIABLE EXTRANEOUS VARIABLE 3. Decrease in BMI (body mass index) CHOOSE ONE INDEPENDENT VARIABLE DEPENDENT VARIABLE EXTRANEOUS VARIABLE 4. Study participant's cultural eating habits CHOOSE ONE INDEPENDENT VARIABLE DEPENDENT VARIABLE EXTRANEOUS VARIABLEarrow_forwardWhy is the following research question not appropriate? Select all that apply. What are the effects of childhood obesity in the United States? Because it is not politically correct Because this question is too broad Because it cannot be narrowed down The research question is appropriate.arrow_forward
- Some nutritionists claim that the secret to long life is to be slightly underweight as an adult. If a persons weight is related partly to diet, partly to activity level, and partly to genetics, what underlying factors could be at work to generate statistics that support this claim?arrow_forwardJoe would need to cut back on sweets and eating late at night. His carb intake is very high, so we recommend more fruits and vegetables low in calories and low in fats. What is the independent variable? What is the dependent variable?arrow_forwardThe global rise in obesity can be examined through the lens of the biopsychosocial model. Match the factors that lead to obesity to the sphere they fall in. (I hope this is an easy one!) availability of a wide variety of high sugar and V [ Choose ] high fat foods social biological Having friends who are overweight psychological Obesity runs in families - even when family [ Choose ] members are raised apart Eating provides stress relief [ Choose ] Body weight is regulated by a set point [ Choose ]arrow_forward
- A researcher assessed body weight in a community using two methods. First, participants were asked, “Do you think you are overweight?” (Possible answers: ‘yes’ or ‘no’). All participants were then weighed and classified as ‘overweight’ or not. The assessment was however done separately by hypertensive status. Among 270 hypertensive participants, 108 were classified as overweight on the basis of being weighed. Of these 108, 54 reported themselves as overweight when questioned. Of the 162 participants not classified as overweight on the basis of being weighed 16 reported themselves as overweight when questioned. Among 745 non-hypertensive participants, 134 were classified as overweight on the basis of being weighed. Of these 134, 118 reported themselves as overweight when questioned. Of the 611 participants who were not classified as overweight on being weighed, 110 reported themselves as overweight on questioning. Separately for the groups: (1) People with hypertension (2) People…arrow_forwardA researcher wants to investigate whether a daily corn-based diet supplemented with powdered milk would increase the daily weight gain of growing calves. What is the Independent and Dependent variable of this experiment?arrow_forwardOn your way to class this morning, you stop at your favorite coffeehouse and grab a caffé mocha and a blueberry scone. The caffé mocha contains 260 Calories and the scone contains 460 Calories. (a) What fraction of your recommended daily caloric intake did you just consume? Use the estimated calorie requirements for your age and gender at www.nhlbi.nih.gov/health/public/heart/obesity/wecan/healthy- weight-basics/balance.htm. (b) Convert the calories you consumed for breakfast into kilojoules.arrow_forward
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