Simploids Lab Report

Keeping the experiment isolated on the focus of body size is as simple as not changing any other variables concerning the experiment. Therefore, predator number, predator size, habitat type, and any other possible variable in the experiment that is not body size will be kept as consistent and identical throughout the groups and replicable tests as

Graph 1: Results of Daphina magna Experiment Group Name Treatment control AVG BPM Treatment AVG BPM % of Control Chemex Caffeine 100 176 176 Indecisive Caffeine 148 190 128 The Byrds Caffeine 200 284 142 Average 148 Team Juan Alcohol 180 96 53 Daphina Alcohol 216 100 46 DSD Alcohol 164 140 85 Average 61 The above table is the class data as a whole. The Daphnia magna treatment BPM is considerably higher than the control BPM for those organisms tested with caffeine. As for alcohol, the treatment BPM is considerably slower than the control BPM. Lab Report Sample #3 Graph 2: Overall Results of Daphnia magna Experiments Class Results Percentage of heartrate 160 140 120 100 8 0 60

I learned that anaerobic is an organism or tissue that is living in the absence of air or oxygen while aerobic is involves the organism or tissue receiving and requiring air. Furthermore I learned about the anaerobic cellular respiration that uses an electron acceptor rather than oxygen to complete metabolism using electron transport-based chemiosmosis. Also in this reading I learned about fermentation which is an anaerobic process in which energy can be released from glucose even though oxygen is not available.

The hypothesis that was tested was pill bugs are use to the cooler temperature of the room and natural soil would travel a greater distance once they were in a hotter environment. The hypothesis is rejected on the basis that the p-value of .760 is greater than .05. Furthermore, figure 3 supports this rejection, since the averages are very close to each other and their error bars completely overlap. This rejection means that once the pill bugs where in the hotter environment there was not difference in their behavior compared to the cooler room temperature environment; they did not travel longer distances. However looking at bugs D, F G and H in figure 2, there is a difference in distance traveled that appears to be greater than

The Dependent variable for this study is the amount of water absorbed by the paper towels. This will be measured in milliliters. The independent variable for this study is different brands of paper towels. The controlled variables will be the amount of water the paper towels are given to absorb, the size of the paper towels at the beginning of the experiment, and using the same measuring instruments in each trial. I will reduce the threat to internal validity by conducting the experiments in the

In our Penny Lab, we wanted to extend what we were told to do with experimental design. We’re doing this because we wanted to prove what he thought our hypothesis had been, and a hypothesis can not be true unless it can be tested. We investigated what variables made the Penny Lab easier, or harder. As a class we decided to investigate variables like, dropping the penny from the same height, and applying the same pressure to the penny for each drop. But first we had to know what variables were, and which variables we needed to use in the experiment. The variables were, the independent variable, dependent variable, the experimental group, and the control group. We investigated this to show how much water a penny could hold, but we introduced

The pill bugs lab was done to solve the problem of which type of food the pill bugs preferred, cucumber of pepperoni. My hypothesis was that the pill bugs will favor cucumber over pepperoni. In order to carry out this experiment, we used the chamber method to determine which food was favored by the pill bugs. Pieces of cucumber and pepperoni were placed on each end. Then five pill bugs were placed in each chamber, and their movement was observed and recorded. Because the results were so close to each other, we concluded that their reaction to the stimulus was a kinesis reaction, and it is only random. My hypothesis was not true because the standard error from the number of pill bugs in cucumber chamber and pepperoni chamber overlapped. This means that there is no scientific reason for why the pill bugs chose cucumber over pepperoni. I learned many new things in this experiment, such as, how to use a choice chamber, and how to calculate the standard deviation and error of the data. Also, I learned how pill bugs react to an outside threat.

The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in

Our experiment was simple, yet painful. It involved us pressing a clothespin nonstop, for 3 minutes and 20 seconds. Every 20 seconds, we had to tell our partner how many times we pressed the clothespin. Each person did this 4 times, twice with each hand. One time, we were also listening to fast-paced music, in hopes of distracting us from the pain. The experimental control was a prior experiment. In which we pressed the clothespin like I explained, but without any music. So we kept the clothespin, the people doing the experiment, and allotted time the same during both experiments. Our independent variable was the addition of music (distraction), while the dependent variable was the muscle fatigue in

C. Results for the whole class: Make notes about how the measurements and observations of other groups in the class compared to yours. Any outliers?

Dependent variable- jar volume after the egg is out (ml). Controlled variables- jar, same amount of water and corn syrup, same number of days it stayed there, same grade egg, same process, same surface we put them on. The experimental group are both the eggs because they both got tested on. We didn't have a control group because we didn't have an egg that didn't go through a test. The experimental group is the group you experiment on. The control group which doesn´t get tested

16. The text points out a common misconception about the term “controlled experiment”. In the snake mimicry

That is why people encourage scientists to analyze their entire experiment before they go through with it. Scientists should also be able to justify the use of a number of animals in a specific experiment.

An association between enzyme production, gene copy number, and gene evolution was explored by conducting analysis of the salivary amylase enzyme, AMY1A gene copy number, and the ancestral starch consumption in Homo Sapiens (Tracey 2017, p.22). It was hypothesized that the relative amount of starch consumption was very high for my personal ancestral diet, thus my AMY1 diploid gene copy number in my genome and salivary amylase concentration would be significantly higher than the population mean. With a population of 28 subjects (n=28), individual saliva samples were collected and compared to a calibration curve to determine the approximate amylase concentration by analyzing absorbance values. Individual samples of buccal cheek cells were

The main focus of this lab was to be able to understand the different phases of mitosis and the cell cycle and also identify what those stages may look like. Mitosis is the process in which concerns the production of new cells. For example, when apoptosis(cell death) the process of Mitosis begins to replace the dead cells. To be able to familiarize ourselves with this concept, we took a sample of an onion root and had it put through a process to be able to look at the different phases under the microscope. We found that the majority of the cells were mostly undergoing Interphase or Prophase which are the phases in charge of crossing over of DNA and where the chromosomes then become visible and the nuclear envelope dissipates. The conclusion of this lab was that Mitosis is essential for the production of new cells. In the case of the onion root sample, the cells were damaged leading to the tester to undergo Mitotic cell division and it was found that mainly Interphase and Prophase were the stages that occurred in this lab.