eSciencelab.com biology lab #1 dissolved oxygen Determine which of the following observations are testable. For those that are testable: • Write a hypothesis and null hypothesis • What would be your experimental approach? • What are the dependant and independent variables? • What is your control? • How will you collect data? • How will you present your data (charts‚ graphs‚ types)? • How will you analyze your data? 1. When a plant is placed on a window sill‚ it grows faster than when it
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things. One important part of a cell is the cell membrane. The cell Membrane is a thin protective coating around a cell that regulates what goes in and out of the cell. An important part of regulating this is passive transport. Passive transport is the movement of materials through membranes without any input of energy. One type of passive transport is diffusion. Passive transport is the diffusion of substances across a membrane. In diffusion‚ molecules will usually move from where the substance
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LAB EXERCISE: Diffusion and Osmosis Laboratory Objectives After completing this lab topic‚ you should be able to: 1. Describe the mechanism of diffusion at the molecular level. 2. List several factors that influence the rate of diffusion. 3. Explain why diffusion is important to cells. 4. Describe a selectively permeable membrane‚ and explain its role in osmosis. 5. Define hypotonic‚ hypertonic‚ and isotonic in terms of relative concentrations of osmotically active substances. 6. Discuss
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Milky Jimenez Dr. Kebichi GE150: Survey of the Sciences Unit 1 Lab 1: The scientific Method Observations: There are 22 pieces of meat and 12 pieces of sausage linked together. 4/22 pieces of meat have maggots on them they also look older/less fresh Flies are flying around and lying on the meat. Meat on tables were uncovered Questions: 1. Are flies responsible for maggot formation? 2. Why are all these pieces of meat together 3. What would happened if some of the meat were covered 4. Why does
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NAME: Brandon Davis DATE: 01/22/15 Virtual Lab #0: Mealworm Behavior Worksheet 1. Open the Virtual Lab: Mealworm Behavior 2. The lab simulation will be on the right side of the screen‚ the “Question” column will be on the left side of the screen. 3. Click the play button on the video controller in the lab simulation to watch an introductory video about mealworms. 4. Read the background information and instructions in the “Question” column. 5. Yellow mealworms are the larva stage of what
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Class Review for Test # 1 Multiple Choice Questions 1) What sociological phrase is used to describe "opening a window onto unfamiliar worlds" and "offering a fresh look at familiar worlds"? A) the sociological perspective B) the social imperative C) social integration D) social location 2) To be classified as a society‚ what are the two key qualities a group of people must share? A) a common language and a common religion B) a common culture and a territory C) a territory
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Solute Concentration on the Mass of Apples Introduction Background: This lab involves the testing and measuring of water potential. Water potential (ψ) is the tendency of water to diffuse from one region to another. It measures the free energy available in water to do work. Pure water has a water potential of 0 (kpa--unit?). Water will move from an area of higher water potential to an area of lower water potential. Several factors‚ including temperature‚ pressure (ψp) and solute concentration (ψs)
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LS 1 LAB DEMO 1 13 January 2014 Introduction: The broader context of this lab was aimed at observing animals and documenting specific animal behavior patterns. Specifically‚ we were trying to determine if squirrels applied snakeskin randomly to certain areas of their body or if there was a specific technique to it in relation to escaping their predators. After an animal has determined that a predator is nearby‚ it must then take action to avoid encountering this threat. Encounters are most easily
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Lab Assessment Questions & Answers 1. What is the significance of creating Groups and adding Users to Groups? Explain. It is important to put user in groups because it is easier manager there permissions. Instead of assigning permissions to a new user every time someone is hired‚ you would just add them to the groups they need. 2. Given a scenario where there are five (5) database administrators that may periodically need access to a given system. Discuss a concept to better manage these administrators’
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Scientific Paper on Diffusion 2 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using two tests: the glass tube test and the agar-water gel test. In the glass tube set-up‚ two cotton plugs soaked in two different substances (HCl and NH4OH) were inserted into the two ends of the glass tube. The substance with the lighter molecular weight value (NH4OH‚ M = 35.0459 g/mole) diffused at a faster rate (dAve = 25.8cm)‚ resulting in the formation of a white ring around the
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