Shalacia Gilmore Fall 2012 BIO 1107 Natural Selection Lab INTRODUCTION In the 1850s‚ two scientists by the name of Charles Darwin and Alfred Russell Wallace composed the theory of evolution by natural selection. (1) Darwin characterized several claims needed for natural selection to happen‚ including heritable variation within the population‚ and the presence of more individuals than the environment can support. They also discovered that certain environments favored certain traits. These
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General Biology I Lab (Bio 104) CRITICAL THINKING ACTIVITY I – Diffusion/Osmosis Name: Tonya Finch What are the 2 tests substances? 1. Potato starch 2. Sugar Water 3. Why did a color change occur in the jar water? Because IKI was added to give it an amber color (gold color). It iodine solution and this caused the color change. 4. What does the color change in #3 indicate? Water and IKI was in jar and the iodine caused the color change of the water. 5. Why did a color change
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Student Laboratory Guide Write-up: Comprehensive History With your “patient” assuming the role of a client‚ conduct a comprehensive history. History Biographic Data Date: 10/04/2013 Initials only: L.C. Gender: M Race: H Date of Birth: 04/15/1972 Age: 42 Marital Status: married Historian quality : Good Occupation: Aircraft mechanic Source of Data: Patient Reason for Seeking Care/Presenting Problem: Present Health Status Anemia Asthma Artery Disease Osteoarthritis
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Test for reducing sugars using Benedict’s test Test for starch using the iodine test Test for proteins using Albustix paper Test for vitamin C using DCPIP solution A control using distilled water instead of the sample should be included. Independent: different types of food samples Dependent: different types of food substance presence in food sample Assumption: Controlled: using the same amount of food sample in different test Procedure: Solid: Grind the food with distilled water.
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Protocol for Lab 5 – Aerobic Respiration Part 1 Isolation of Mitochondria from Cauliflower - Weigh 50g of rosettes cut from fresh cauliflower head. - Cut rosettes and place it on ice - Prepare juice extractor by placing ice and an empty 150 ml beaker into the right compartment. - Collect pulp from left compartment and record total volume of the extract. Approx. 20ml - Filter the pulp using six layered cheese cloth and collect it in a beaker sitting on ice. - Place two 50 ml test tubes
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decreases. This is because in lower temperature‚ water can hold more dissolved oxygen compared to water with higher temperature‚ thus rate of respiration becomes slower as enough oxygen are supplied. Variables: Variables | Method of controlling | Independent variable | Temperature of water | Dependent variable | Respiration rate of the goldfish | Controlled variable | 1. Type and number
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Title: Study of Dominant Thumb and Handedness Abstract: In this experiment‚ the relationship of handedness and thumb dominance was tested. 50 people were asked to clasp their hands. Each person’s thumb dominance and handedness were recorded. Although there was evidence of all dominance/handedness combinations‚ there seemed to be a connection between the person’s handedness and their left thumb dominance. Background Information: When people clasp their hands‚ almost all have a strong preference;
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KOLEJ MATRIKULASI MELAKA 78300 MASJID TANAH‚ MELAKA Guidelines for Biology Experiments 1.0 Attendance 1.1 Attendance to practical sessions is COMPULSORY. 1.2 If you cannot come to the class due to ill health or emergency excuses‚ please inform the lecturer EARLIER‚ so that another practical session can be arranged for you ON THE SAME WEEK. 2.0 Lab coat 2.1 Wearing lab coat is COMPULSORY. 2.2 Put on the lab coat throughout the class. 3.0 Jotter 3.1 Jotters should contain the summary on the PROCEDURES
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Littlefield Simulation Write-up December 7‚ 2011 Operations Management 502 Team 9 Littlefield Lab We began our analysis by searching for bottlenecks that existed in the current system. It was easily identified that major issues existed in the ordering process. Without calculations‚ you could tell the reorder point was too low since the historical plots showed inventory levels at zero for two or more days at a time. The number of jobs in customer orders showed correlating spikes at the same
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experimental approach be to test this hypothesis? Ans: To take and test different water samples and measure the oxygen dissolved levels with the fish population to see if the same results are achieved. 4. What are the independent and dependent variables? Ans: Independent variable would be the dissolved oxygen. The dependent variable would be the fish population. 5. What would be your control? Ans: In controlling the dissolved oxygen you can control the fish population. 6. What type
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