BIOS 104 - Spring 2017Name:Exam I, 30 January, 2017Michael Muller, Instructor TA:This exam consists of 42 questions over 5 pages. Each question is worth 2 points on the soloexam and ½ point apiece on the take-home exam. . Please check to see that all the pages arepresent before you begin. Use a #2 pencil and bubble in all answers. Make sure you bubble inyour name, last name first, and your UIN. Failure to bubble in your UIN will delay your examscores being posted in blackboard. Your scores will be posted on Blackboard as soon as they arein. Choose the BEST answer for each question. Good Luck!Use the information below for questions 1-3:Fertilizers provide nutrients to plants and help them grow better. You want to test the effects of anew liquid fertilizer, Brawndo, on soybeans. You grow all plants in a growth chamber to keepsunlight, temperature, humidity, etc., constant. You create the following groups and collect thefollowing data:Group ConditionsResults1No Water, no BrawndoPlants died2Water onlyPlants grew an average of 25 cm3Branwndo onlyPlants died4Water + BrawndoPlants grew an average of 24 cm1. Which group(s) are designated as controls?A. Group 1 onlyB. Group 2 onlyC. Groups 1 & 2D. Groups 1, 2, & 3E. Groups 1, 2, & 42. What conclusions could you draw on the use of Brawndo as a plant fertilizer?3. Would it be valid to claim that Brawndo is scientifically proven to accelerate plant growth?A. YesB. No.4. In science, hypotheses are proposed answers to questions based on previous knowledge anddata, but theories are far more broad models which are based on a tremendous amount ofexperimental and observational data.
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