Controlling for a variable

Research Question: To what extent does temperature have an affect on the enzymatic rate of reaction between starch and amylase? Background Information: Enzymes and the function of enzymes are extremely vital to the human body in regards to how quickly the body can break down the macronutrients of starch, lipids, and proteins. I chose to investigate the breaking down of a complex carbohydrate (starch) because due to their size and structure, starch is broken down more slowly than other…

ball would have bounce off the ground and return to the starting height. Research question How was the efficiency of the bounce dependent on the height of a ball being dropped? Independent Variable: The height of release of the tennis ball Dependent Variable: The peak height of the bounce Controlled Variables: • The mass of the tennis ball • The tennis ball • Surface the ball is dropped on • The initial velocity…

The test responses should be typed. Select 25 items to answer out of the 50 items. Use the American Psychological Association (APA) Format to prepare the test. A cover sheet and a reference page(s) are required. An abstract is not required. The document is due in the eLearn dropbox on 10/08/2015 by 11:59pm cst. Define price takers¬: Price taker is a provider who has no power to influence the prices set by the marketplace. What is the difference between a price taker and a price setter? Price…

search terms ‘Classroom Management’ and ‘Discipline’. The reason that I chose this study is because it included a large group of participants from 2nd, 3rd, and 4th year pre-service teachers, a time that any practicing teacher can relate to. The variable in the study was if the pre-service teachers took two courses: Classroom Management and Student Teaching. When I was in the…

He believed population needed to stay within certain limits by either controlling the number of births, or raising the death rates (though war or famine as a “positive” check). Malthus blamed the declining population on three variables. Firstly, the uncontrolled reproduction of offspring. He felt families were producing more children than they could care for with limited resources. Secondly, the production…

concentration of 0.1 and dephosphorylations (d1, d2, d3, d4, and d5) having a concentration of 0.05. We set the growth signal (S) to 1 along with the initial concentrations of variables: MAPK, MAPKK, and MAPKKK in the dual-site phosphorylation and variables: KK as and K in the single-site phosphorylation. All other variables’ initial concentrations were set at 0. We ran MAPK activation over time in dual-site phosphorylation versus single-site phosphorylation to show the difference between…

Snails dominated the dry biomass of free-living organisms with a percentage of 60% across streams. In addition, Alabama streams have more snails than any place in North America. However, for a long time, there is being an issue on determining the variables that lead them to their diversity, such as shell-form variation, morphological characters, taxonomic keys unavailable, and species relationships. Despite all the species found, it is really hard to recognize each one of them due to their…

Even while controlling a student’s background social and parental status, the relationship between the two still exist. With the use of the previous research studies, the relationship between alcohol consumption and its effects on academic performance will be further…

Negative feedback is an important physiological regulation and control. Body water volume is a regulated variable. Disproportion of water volume in the body (too high or too low), require the action of hormone. In case of abnormal loss of body fluids, ADH will help to maintain body fluids by reducing the elimination of urine. ADH impact is example of negative feedback effect, where physiological regulation is maintained. Maintained body Water volume > excessive loos +>…

reliable results. Reference: Cassa, E. Z. "Chemistry Outreach Program: Florida State University." Chemistry Outreach Program:. Florida State University, n.d. Web. 28 Feb. 2013. Aspect 1- Defining the Problem and Selecting Variables Research Question: How will changing the concentration of sodium borate solution from 1% to 2%, 3%, 4% and 5% change the viscosity of slime? Hypothesis: If the concentration of sodium borate is increased, the stiffer the slime…