Biology Lab. Introduction to Science Essay

You should submit your document in a Word (.doc or .docx) or Rich Text Format (.rtf) for best compatibility. enjoyment 1 Data InterpretationTable 1 Water Quality vs. look for PopulationDissolved Oxygen 0 2 4 6 8 10 12 14 16 18 add together of look for Observed 0 1 3 10 12 13 15 10 12 13 1. What patterns do you concur ground on the information in Table 1?The patterns that I observe based on the information in Table 1 are The take aim of Dissolved Oxygen consistently increases by an step-up of 2 with from each one subsequent info point The tote up of Fish Observed seems to fluctuate with no real consistency (with the exception that aft(prenominal) the peak of 15 seek was observed, the next3 info points invent 10, 12, 13 which was the same of tip that were observed in the exact ball club prior to reaching the peak 15. (In short, the pattern 10, 12, 13 seems to have retell itself.) The aim of Dissolved Oxygen does not seem to decrease when the Number of Fish Obser ved decreases2. Develop a hypothesis relating to the amount of dissolve eccentric person O measured in the urine sample and the nume rove of look for observed in the body of water.Based on the information provided in the table, I would hypothesize that the fall of fish observed has no passenger car on the level of oxygen dissolved. This hypothesis would be based on the occurrence that the dissolved oxygen steadily and consistently increased by an increment of 2 with each progressive info point. When the number of fish observed was momentously increased from 3 to 10, the dissolved oxygen level only increased by 2. Conversely, when the number of fish observed significantly decreased from 15 to 10, the dissolved oxygen still maintained that consistent increase of 2.3. What would your proveal approach be to test this hypothesis?The experimental approach that I would use to test this hypothesis would be to obtain a 2 freshwater fish army tanks, fresh water, fish, an aquariu m water level meter and a dissolved oxygen meter. In peerless tank, I would ensure that the aquarium was filled with a specifically obstinate level of water and measure the level of dissolved oxygen register with no fish. Then I would gradually begin adding fish daily, beginning with one fish. Each day I would ensure that the water level remained the same as it was prior to adding the first fish and I would expand increasing/decreasing the nub number of fish daily. I would similarly consistently measure the dissolved oxygen levels as I introduced or removed fish to observe the levels.In the 2nd fish tank, I would ensure that the level of freshwater and dissolved oxygen matched the levels of the first fish tank prior to addingany fish. Then, I would add the maximum number of fish that I intended to observe in the 1st tank and observe the oxygen level. For the duration of the experiment, I would not ensure that the water level remains the same but I would not falsify the total fish in this tank. I would as well observe the oxygen levels in the 2nd tank throughout the experiment.4. What are the in dependant and dependent variables?The strong-minded variable in this experiment would be the total number of fish organism observed, and the dependent variable would be the dissolved oxygen.5. What would be your control?My control in this experiment would be the 2nd fish tank, which I would not fluctuate the total number of observed fish.6. What type of graphical record would be appropriate for this data set? Why?The near appropriate type of graph to utilize, which would best illustrate the data being compared in this example, would be a line graph. I would use a line graph because it most clearly and effectively demonstrates how the ii independent data sets are related, as well as how their independent fluctuations in volume affect one another.7. Graph the data from Table 1 Water Quality vs. Fish Population (found at the beginning of this feat). You white thorn use Excel, then Insert the graph, or use another picture program. You may also slew it neatly by hand and peter out your drawing. If you choose this option, you must insert the scanned jpg image here.pic8. Interpret the data from the graph made in Question 7.The data from the graph supports my hypothesis that the total number of fishobserved does not have any purpose on the level of dissolved oxygen, which steadily increases by a level of both with each data point.Exercise 2 Testable ObservationsDetermine which of the chase observations (A-J) could lead to a testable hypothesis.For those which are testable spell out a hypothesis and bootless hypothesisWhat would be your experimental approach?What are the dependent and independent variables?What is your control?How result you collect your data?How will you present your data (charts, graphs, types)?How will you analyze your data?1. When a arrange is placed on a window sill, it grows three inches faster per day than when it is placed on a coffee table in the middle of the living room. TESTABLE shot The plant will grow at a faster rate per day when it is placed on a window sill as contradictory to being placed on a coffee table in the middle of a living room. Null Hypothesis The location of the plant has no bearing on thegrowth rate per day. Experimental show up I would gather four identical plants, two of which I would I would rotate between the living room and window sill daily, and the other two would remain static in their locations for the entire duration of the experiment. I would wield and care for all plants in an identical manner, ensure that their respective locations remained only the same, as well as measure and record the growth of each plant daily. After a sufficient period of time had elapsed, I would record the final relevant data in Excel, and insert a line graph with all four plants incorporated into a unity chart, which would also demonstrate the growth rate over time.Sub sequently, based on the information contained within the data points, and the line graph comparison, I would draw a final conclusion and present my data to interested parties in the form of a drawing Microsoft PowerPoint presentation. I would include a truncated summary of the intent of the experiment, a detailed explanation of the tools and exact influence in which I used to conduct my tests, and all of the raw data statistics relative to the daily growth rate of all four plants. helpless variable quantity The location of the plants. Independent Variable The growth rate of the plants. image The 2 static plants.2. The teller at the bank with brown copper and brown eyes and is taller than the other tellers. NOT TESTABLE3. When chap chuck red- melodyed foods and exercises regularly, her blood pressure is 10 points lower than when she does not exercise and eats unhealthy foods. TESTABLE Hypothesis Sallys blood pressure will be lower when she eats healthyfoods and exerci ses regularly. Null Hypothesis The fact that Sally eats healthy foods and excercises regularly will have no effect on Sallys blood pressure. Experimental flak I would first observe and record, for a sufficient period of time, Sallys eating habits, exercise regimen, and blood pressure, when she is not eating as healthy or exercising as regularly to accurately evaluate a reliable average of the range of her blood pressure in this phase of the experiment. Then, I would ensure that Sally was placed on a healthy eating plan, approved by a nutritionist, and prescribe an exercise routine. Sallys eating habits and exercise regimen would again be recorded daily, along with her blood pressure statistics and other relevant information.I would track and record the daily relevant statistics in Excel, and I would also use a line graph to illustrate the comparison of her blood pressure over time under the two different scenarios. Subsequently, based on the information contained within the data points, and the line graph comparison, I would draw final conclusion and present my data to interested parties in the form of a brief Microsoft PowerPoint presentation. I would include a brief summary of the intent of the experiment, a detailed explanation of the tools and exact do by in which I used to conduct my tests, and all of the raw data statistics relative to the changes in Sallys blood pressure as well as her diet and exercise habits throughout the experiment process. subordinate Variable Sallys eating and exercise plan. Independent Variable Sallys blood pressure reduction. Control the phase of the experiment when Sallys blood pressure is observed and recorded when she is not eating healthy or exercising regularly.4. The Italian restaurant crossways the street closes at 9 pm but the one two blocks away closes at10 pm. NOT TESTABLE5. For the past two years the clouds have come out at 3 pm and it has started come down at 315 pm. NOT TESTABLE6. George did not sleep at all the night following the start of daylight savings. NOT TESTABLEExercise 3 ConversionFor each of the following, convert each value into the designated units.1. 46,756,790 mg = _46.7568 kg2. 5.6 hours = _20160 seconds3. 13.5 cm = _5.31496_ inches4. 47 C = 116.6 FExercise 4 Accuracy and PrecisionDuring gym class, four students decided to see if they could jumble the norm of 45 sit-ups in a minute. The first student did 64 sit-ups, the second did 69, the third did 65, and the fourth did 67. 2. The average score for the 5th course of action math test is 89.5. The top 4th graders took the test and scored 89, 93, 91 and 87. twoYesterday the temperature was 89 F, tomorrow its supposed to be 88F and the next day its supposed to be 90F, even though the average for September is only 75F degrees PrecisionFour friends decided to go out and play horseshoes. They took a picture of their results shown to the right uncompleteA local grocery storage was holding a contest to see who co uld most closely reckon the number of pennies that they had inside a large jar. The first six good deal guessed the numbers 735, 209, 390, 300, 1005 and 689. The grocery clerk said the jar actually contains 568 pennies. NeitherExercise 5 Significant Digits and Scientific NotationPart 1 Determine the number of significant digits in each number and release out the specific significant digits. 405000 3 (405)0.0098 2 (98)39.999999 8 (39999999)13.00 4 (1300)80,000,089 8 (80000089)55,430.00 7 (5543000)0.000033 2 (33)620.03080 8 (62003080)Part 2 Write the numbers below in scientific notation, incorporating what you know about significant digits. 70,000,000,000 = 7 X 10100.000000048 = 4.8 X 10-867,890,000 = 6.789 X 10770,500 = 7.05 X 104450,900,800 = 4.509008 X 1080.009045 = 9.045 X 10-30.023 = 2.3 X 10-2TYPE YOUR FULL NAME