Nervous System and Sensory Organs • dorsal roots and ventral roots - connect Spinal nerves to the spinal cord • medulla -responsible for many involuntary functions such as heartbeat and breathing‚ primary communication pathway between the spinal cord and the rest of the brain‚ • cerebellum - receives input from multiple sensory receptor types and uses this information in coordination of complex body movements • pons- communication between lower and higher brain regions • midbrain- processes
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of hydronium equals the concentration of hydroxide ions. 13. Explain the pH scale and how it is used to indicate acidic‚ alkaline‚ and neutral solutions. 14. What does it mean in terms of strength when the pH of an acid changes from 5 to 4? Part II: For the following questions‚ provide your response in short-answer format (2–3 detailed sentences each). Use this Phase’s activities and resources to assist you in answering. 1. What is pH? a. pH is a measurement of hydrogen ion concentration
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organelles) • the importances of mitosis • the process of mitosis The eukaryotic cell cycle Fig 2. Quantity of DNA in the cell during different phases This is illustrated by Fig 1. DNA quantity/arbitrary units Fig 1. The eukaryotic cell cycle 4 G2 2 S Mitosis Cyt oki G1 nes is S G2 cell division G1 time G1 The G1‚ S and G2 phases are termed interphase. Interphase is the stage of the cell cycle between cell divisions. It is not a resting stage‚ since in
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Eric Scantlebury NT1310 Physical Networking Unit 4 Lab 1: New building – Tools and Wiring 4/8/14 Now that we understand the codes and standards needed to create this building‚ it’s time to put stuff in it. Our task at hand is to start wiring the building for a new computer science and electrical engineering labs. This building will have a lot of devices that need to be connected to the school campus network and we will need a lot of tools to do it. First off I think since our building is going
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out‚ comes in and leaves as heat 3. What are the 4 most important elements in the human body? C‚ O‚ N‚ H 4. Draw the periodic square for Helium. How many valence electrons does it have? How do you figure this out using the periodic table? Two valence e-‚ 23He‚ all the way right full shell only holds two electrons 5. What is an isotope? How are they used? Different number of neutrons‚ used in biological research (radioactive) 6. Describe the 4 main types of bonds. Put them in order from strongest
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hydrolysis‚ a reaction that is essentially the reverse of the dehydration reaction. HO 1 2 3 H Short polymer HO Unlinked monomer Dehydration removes a water molecule‚ forming a new bond HO 2 1 H 3 H2O 4 H 4 (a) Dehydration reaction in The synthesis of a polymer H Longer polymer HO 1 2 3 Hydrolysis adds a water molecule‚ breaking a bond H2O (b) Hydrolysis of a polymer HO 1 2 3 H HO H Carbohydrates
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use in criminal investigation • used to check paternity / who is the father / mother / parent • used to check whether two organisms are clones 2. Discuss whether genetic screening should be carried out for sickle cell‚anemia and other diseases. 4 marks. 3. Discuss the advantages and disadvantages of genetic screening. 8 marks. Genetic testing can cause either a feeling of relief or anxiety‚ depending on the outcome of the test results. Ultimately‚ testing provides individuals with
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Lab 4 Projectile Motion Sai Moua Purpose: The purpose of this lab was to define what the initial velocity of the ball when it is launched out of the pipe. Our next objective is to determine at what angle that the ball will be ejected at the maximum range. Lastly‚ we predict and confirm the range before we launch the ball at a certain angle. Theory: Projectile motion according to Dr. James S. Walker is defined as‚ “the motion of objects that are initially launched –or “projected”- and that
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1. What makes Hot Topic so successful as a retailer? What makes them so popular with their employees? How can they keep their success going? Creating an environment were each employee regardless of their titles and positions share a common ground such as drive and passion to their products. Additionally their hiring modeling is to understand the age‚ diversity and cultural demographics and obtaining people that will understand the concepts behind their customer’s needs. Their motivation tactics
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What do you examine? Hypothesis‚ null hypothesis‚ alternative hypothesis What type of explanation? Causal explanation: you need a control experiment Avoid spuriousness How to look for patterns in the data Quantitative/qualitative data Chapter 4 How and why do samples work? Sample Population Random sample Four types of non-random samples Convenience sample Quota sample Purposive/Judgmental sample Snowball/network sample Random samples Sampling ratio Sampling error Types of
Free Sampling Simple random sample Scientific method