After reading the paragraphs below, answer the questions that follow.Formaldehyde is a simple organic molecule with important industrial uses; however it is a known carcinogen (cancer-causing compound). Researchers have long known that formaldehyde is present in cigarette smoke, but it was only recently in 2014 that researchers determined that formaldehyde is also present in e-cigarette vapor. For this and other reasons, the U.S. FDA is now overseeing production and distribution of e-cigarettes.The data below are compiled from several studies examining the levels of formaldehyde in cigarette smoke and low- and high-voltage e-cigarette vapor (increasing the voltage of an e-cigarette allows for increased nicotine intake). The data in bar A are from individuals consuming 20 cigarettes a day. The data in bar B are from individuals consuming 3 mL of e-cigarette fluid a day when the e-cigarette is set to low voltage (n.d. = not detectable). The data in bar C are from individuals consuming 3 mL of e-cigarette fluid a day when the e-cigarette is set to high voltage.Assuming e-cigarettes contain many similar chemical compounds to traditional cigarettes, what part of the respiratory system do they likely negatively affect?

Cells make up about what percentage of total blood volume?

A scientist wants to study the effects of a new Drug X on cancer cell growth. Equal numbers of cancerous liver cells are grown on ten plates in a lab.  Drug X is added to five plates.  Water is added to the other five plates.  The ten plates of cancerous cells are incubated at 37 Celsius for two days.  After two days the plates are removed from the incubator and the number of cells is counted on each plate.   What is the independent variable? 

What is the dependent variable on this graph? 

Which two domains of life are prokaryotic? 

A scientist wants to study the effects of a new Drug X on cancer cell growth. Equal numbers of cancerous liver cells are grown on ten plates in a lab.  Drug X is added to five plates.  Water is added to the other five plates.  The ten plates of cancerous cells are incubated at 37 Celsius for two days.  After two days the plates are removed from the incubator and the number of cells is counted on each plate.   What is the dependent variable? 

Which of the following is likely to have the lowest concentration of O2?

What is the purpose of quality control? Why is it important to a firm?

John loves coffee. John will drive ten miles out of his way in the morning to get a cup of coffee at his favorite coffee shop so he can drink it on the way to work. For two years John has begged the owner of the coffee shop to open one in the shopping center near his home so he and others in his community can enjoy the delightful aroma, titillating taste, and velvety smoothness of their coffee creations. What utility is John seeking?

Jessie’s business sells souvenirs and craft items to tourists in Myrtle Beach, South Carolina. This is an example of a ____ business.