Egg Lab Report Introduction: An egg is a model of a human because the egg has a cell membrane like humans do inside and outside of the body that let things pass through like water. We can use eggs to study the effect of changes in the external environment on the internal environment by having harsh environments like putting the egg in only alcohol and see what happens to the inside of the egg. Diffusion is the movement of a substance down its concentration gradient from a more to a less concentrated
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Introduction Human cilia play a critical part in human processes. Human cilia are hair-like projections that extend from the surface of a cell. Cilia are capable of rhythmic motion and acts together from separate strands so that the cell is capable of movement. Flagella are a whip-like structure that is found in cells as well that allow for the movement of the cell. Human cilia are characterized as having “metachronal rhythm" and this means is a rhythm that "changes time" to produce wave. The beating
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Results: Since the mass of the ball bearing used in this experiment was very light‚ 20 balls were measured and the result was divided by 20 for better accuracy. This procedure was repeated for the sizes and the results are as follows: Diameter (mm) Mass (kg) 2 0.04 3 0.075 4 0.11 To find out the densities of the three balls‚ the following formula was used: Density= (mass of the ball)/(Volume of the ball)= mass/(4/3 π r^3 ) Density of 2mm ball = (0.04⁄1000)/(4/3 π 〖(0.001)〗^3
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What do the chromic acid test results show? It shows the positivity that indicates the primary or secondary alcohol. 3. Compare results from both types of distillation? They gave the same results‚ so it is more accurate. Conclusion: During this lab I learn how to do simple and fractional distillation. Although the group I worked with only did simple distillation‚ I carefully observed how the group that did the fractional distillation. We collected all the results‚ to have a more precise range
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Coli bacteria. We began the lab by first obtaining two sterile microcentrifuge tubes‚ one was label “GFP+” while the other one was “GFP–” because this one served as a control meaning nothing goes inside this one. With gloves on 25 microliters competent cells‚ which is e. Coli bacteria
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Purpose Determine the acceleration in a quick sprint. Question What would the participant’s acceleration be if he/she sprints forward in a positive direction? Hypothesis/Prediction When a person sprints forward‚ it means he/she speeds up. Consequently‚ the acceleration should be positive. When the velocity accelerates at a constant rate‚ the acceleration should remain constant. Therefore‚ if the participant is moving toward a positive direction and the speed increases‚ then the acceleration
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A. Avril Crayfish Lab Report November 9‚ 2012 Dr. Marvin Results: Figure 1. Firing Rate of Tonic Receptor in Response to Stretch. The correlation between Firing Rate and Stretch of the slow adapting crayfish receptor for four different sets of data is represented in this figure. The recordings are taken at stretches of 2‚ 4‚ 6‚ 8‚ and 10 mm of the crayfish tail. The best fit lines for the different sets of data are as follows: Ali and Emily- Linear best fit line‚ Dave and Laura- Exponential
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Assessment By now you should have a good understanding of the scientific method and its importance in contributing to scientific knowledge. Grab your lab coat and get ready to design your own experiment. In this assignment‚ you will be doing two things: Evaluate an experiment. Designing your own experiment using the scientific method. Part I: Evaluate An Experiment Review each scenario below and choose ONE to complete for part I of your assignment. Read the scenario‚ and answer the
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Introduction: Coccinellidae‚ which is more familiar known as the ladybug‚ comes from a family of small beetles. However‚ one may jump to conclusions after hearing their names‚ but ladybugs are not all females! Their color ranges from a red to a reddish-orange and even to a yellow color along with black spots on their hard-shell wing covers. Even though they are small bugs‚ they are very predatory. The ladybug’s mouth includes mandibles which is another word for their strong jaws (Hussain‚ et al
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Results: The mealworms that were in the room temperature water have a higher cellular respiration rate than the mealworms in the cold water. This is because while they are in the cold water‚ the mealworm’s body slows down which decreases the amount of CO2 that is being produced. Unlike the mealworms in room temperature water‚ their cellular respiration was higher because their body temperature remained the same creating CO2 at a faster rate. Since there were two different controlled groups‚ there
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