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Concept explainers
a.
To determine: The trend of cigarette smoking among high school students in the time period between 1991-2015.
Introduction: Current smoking is defined as smoking cigarettes on at least one day in the 30 days preceding the survey. The U.S Center for Disease Control and Prevention (CDC) conducts biennial Youth Risk Behavior Surveys (YRBS) in which the high school students are asked to self-report their risky behaviors such as alcohol consumption and smoking. The results obtained were represented in the form of graphs.
b.
To determine: The high school students that are most likely found to be smokers.
Introduction: The high school students of three different races/ethnicity (white, black, and Hispanic) and gender (males and females) were involved in the study to observe the trend of current smoking between them. The results obtained were represented in the form of a graph.
To determine: The high school students that are least likely found to be smokers.
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Chapter 11 Solutions
Human Physiology: An Integrated Approach Plus Mastering A&P with Pearson eText -- Access Card Package (8th Edition) (What's New in Human Physiology)
- What is the opening indicated by the pointer? (leaf x.s.) stomate guard cell lenticel intercellular space none of thesearrow_forwardIdentify the indicated tissue? (stem x.s.) parenchyma collenchyma sclerenchyma ○ xylem ○ phloem none of thesearrow_forwardWhere did this structure originate from? (Salix branch root) epidermis cortex endodermis pericycle vascular cylinderarrow_forward
- Identify the indicated tissue. (Tilia stem x.s.) parenchyma collenchyma sclerenchyma xylem phloem none of thesearrow_forwardIdentify the indicated structure. (Cucurbita stem l.s.) pit lenticel stomate tendril none of thesearrow_forwardIdentify the specific cell? (Zebrina leaf peel) vessel element sieve element companion cell tracheid guard cell subsidiary cell none of thesearrow_forward
- What type of cells flank the opening on either side? (leaf x.s.) vessel elements sieve elements companion cells tracheids guard cells none of thesearrow_forwardWhat specific cell is indicated. (Cucurbita stem I.s.) vessel element sieve element O companion cell tracheid guard cell none of thesearrow_forwardWhat specific cell is indicated? (Aristolochia stem x.s.) vessel element sieve element ○ companion cell O O O O O tracheid O guard cell none of thesearrow_forward
- Identify the tissue. parenchyma collenchyma sclerenchyma ○ xylem O phloem O none of thesearrow_forwardPlease answer q3arrow_forwardRespond to the following in a minimum of 175 words: How might CRISPR-Cas 9 be used in research or, eventually, therapeutically in patients? What are some potential ethical issues associated with using this technology? Do the advantages of using this technology outweigh the disadvantages (or vice versa)? Explain your position.arrow_forward
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