D. What are the products of the reactions? Gas E. Where did the products go? Into the air F. A student performing an experiment to determine the caloric content of a cashew nut collected the following data: Mass of cashew nut before burning: 0.55 g After burning: 0.05 g Temp. increase of 200 g of water: 7.0oC 1. 5880J at 4.2 J/cal 2.
Apparatus For our experiment we used a wooden runway with a start box at one end and we put pieces of plexi glass on top of the runway when the subjects were in it. We also used a bell and a small ceramic bowl with mash and sugar in it. Procedure Surgery The first subject was anesthetized with 1.10 cc, the second with 1.38 cc, and the third with .45 cc of Katamine-Xylazine. Then the subject’s head was shaved and mounted in a stereotaxic frame. An incision was made in the scalp and retracted.
Answer | | | | | Selected Answer: | False | Correct Answer: | False | | | | | * Question 6 2 out of 2 points | | | The Hurwicz criterion is a compromise between the maximax and maximin criteria. Answer | | | | | Selected Answer: | True | Correct Answer: | True | | | | | * Question 7 2 out of 2 points | | | Using the minimax regret criterion, we first construct a table of regrets. Subsequently, for each possible decision, we look across the states of nature and make a note of the maximum regret possible for that decision. We then pick the decision with the largest maximum regret. Answer | | | | | Selected Answer: | False | Correct Answer: | False | | | | | * Question 8 2 out of 2 points | | | The chi-square test is a statistical test to see if an observed data fit a
Data Table: time Germinated Oxygen content (%): Germinated Temp©. 30 18.72 34.5 60 18.53 32.9 90 18.51 31.4 120 18.53 30.0 150 18.48 28.9 180 18.48 27.7 210 18.65 26.9 240 18.70 26.0 Rate Calculations: Rate=0.035 degrees Celsius per second Analysis Questions: 1. I was testing both the oxygen content of the peas and also the temperature of the peas over time. 2. Our variable affected the rate of cellular respiration not in the oxygen area, but mainly over
Materials and Methods Experimental Design Forty (40) male albino rats of sprague Dawley Strain weighing (180 - 200 g) were included in the present study. The rats were obtained from the Laboratory of Animal Colony, Minya, Egypt and were housed in well aerated cages under hygienic condition and were provided commercial rodent diet and water ad libitum for one week for adaptation. Rats were housed in temperature controlled rooms (25°C) with constant humidity and 12h/12h light/dark cycle. After the adaptation period, the rats were divided into five groups (n=8 in each group) as follows: Group 1 (G1): considered as normal control group in which rats were fed on balanced diet for six weeks. Group 2 (G2): served as positive control group in which
Method: Preparation for this experiment required gathering all the needed materials and designing an experiment isolating one variable to determine the effects of temperature on the beet cell membrane. The materials needed for the experiment are: * fresh beets at room temperature * beaker of tap water at room temperature * heating device * fridge and freezer * knife * six test tubes * mm ruler * thermometer * beaker * forceps * Dissecting needle * timer Using a sharp knife, I cut the beet into six (7mm x 7mm x 15 mm) pieces as accurately in measurement
ASA Institute Procedure 4 – 1 Quick Diff Staining Procedure Semester Spring 2010 The Class Section MED 215-M08 Sojin Park Dr. Victor Veloz Introduction The procedure that I am going to introduce is Quick Diff Staining Procedure. It is used for the differential count. After distinguishing 100 leukocytes, each of the five leukocytes are regarded as a percentage of the total 100 cells identified. Definition of the procedure Quick Diff Staining Procedure differentiates the distribution of the erythrocytes and five types of leukocytes on the basis of their characteristics, shapes, and sizes. Materials * Blood smear (On the slide with having well-feathered edge.)
Genetics In this task we have been given virgin flies, both male and female from 2 different types vestigial and ebony fruit flies. The genotypes for these flies are: • (vg + vg+ ebeb) • (vgvg eb+ eb+) Aim Are task in this experiment is to do a series of genetic crosses to determine whether these genes e.g the flies body colour and the flies wings, are linked on the same chromosome or on separate chromosomes. Equipment • Fly nap • Stock bottle of ebony flies • Stock bottle of vestigial flies • Yeast • Water • Small 1 cm by 3 cm paper • Breading tube • Foam lid Method First of all the flies are taken from their main colony container a few are released into sealed pipette trays ebony in one sealed tray and vestigial in the other tray. Next you a chemical brand name Fly nap to render the flies incapacitated once the effect has effected all flies we can then study each fly and find the gender of each. We then decided that the we would take 3 ebony female and 3 male vestigial.
By examining the views on abortion of Marry Anne Warren, this paper will argue that abortion is morally permissible on the grounds that early fetuses, though they are genetically human, are not persons (members of the moral community). In this paper I will introduce Warren’s argument on why abortion is morally permissible followed by a counter argument by Don Marquis. Furthermore, this paper will analyze why Warren’s argument is more persuasive than the counter argument offered by Marquis followed by criticisms of the analysis. Lastly, I will discuss why the objections to the analysis are unconvincing. Warren beings her argument by acknowledging that abortion “…usually entails the death of a fetus.
According to the results of the experiment, beetroot has a dense chloroplast, with the plasma membrane protecting the inner part of the cell from the chemical substances. The experiment was used to analyse the effectiveness of each solution with various pH levels on the beetroot slices, and how the pigment diffuses from the beetroot slices into to the liquid. Hypothesis: That due to the high Ph level in the methylated spirits, the majority of the red pigment in the beetroot will be extracted. Variables Control of variables Controlled Variables | How to control | Number of sliced beetroot | Count (5 each time) | Volume of solution | Volume can be measured each time | Time of beetroot in solution | Time can also be measured consistently | Size of the container | Use the same type of container for all solutions | Size of beetroot slices | Use the same stencil to cut beetroot or measure the size of beetroot every time | Materials - 6 x plastic petrie dishes = 1cm x 8.5cm - 35 x 1cm beetroot slices - Ruler - Wax black pencil - 1 x test tube - Test tube rack 1 x pipette - Plastic tongs - Plastic gloves - Safety glasses - Bunsen burner Solutions: - Boiled distilled water - Accreted water - NACI - Methylated sprits - 1% detergent solution - Distilled water - HCI Method 1. Label each 6 petri dishes with the