Cultural‚ Biological‚ Physical and Chemical An entirely different perspective is brought into focus as we consider some of the environmental hazards that accompany industrial growth and intensive agriculture. Some of the most dangerous hazards in this world are the outcome of purely voluntary behavior --- in particular‚ smoking tobacco and engaging in risky sexual activity. We will look at four classes of environmental hazards: Cultural‚ Biological‚ Physical and Chemical (Wright & Boorse‚ 2011)
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Digestion/ Absorption and Homeostasis In order to survive‚ our bodies must bring in energy and nutrients for the cells of the body through eating and digestion of food. To be carried to the cells of the body by the blood stream‚ food must be broken down to molecules. This breaking down of food into molecules‚ small enough to be absorbed into and carried through the blood stream‚ is carried out by the digestive system through the process of digestion and absorption. Digestion is the process of
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OBSERVATION SURVEY SUMMARY SHEETS Name: Date: D. of B.: Age: yrs mths School: Recorder: Text Titles Errors Running Words Error Ratio Accuracy Rate Self Correction Ratio Easy / 1: % 1: Instructional / 1: % 1: Hard / 1: % 1: Directional Movement Analysis of Errors and Self-Corrections Information used or neglected [Meaning (M)‚ Structure or Syntax (S)‚ Visual (V)] Easy Instructional Hard Cross-checking on information (Note that this behaviour changes over time) How the reading sounds Easy Instructional
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Physical and Chemical Properties Toby Orme-Lab 4 Solubility or Reaction Substance Name Color Odor Effect of Heat Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH Mg Silver N/A N/A Non soluble Bubbles Basic Hot/fizz N/A Cu Copper N/A Purple then turned black Non soluble N/A N/A N/A N/A Zn Silver N/A N/A Non Soluble N/A N/A Vaporized and fizzed N/A MgO White N/A Omits gas Hazy mix Boiled Rapidly Basic Got hot and fizzed Became thick or pasty CuCO3 Green N/A Turned black Hazy Green Became powdery
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objective of this experiment is to differentiate between a physical change and a chemical change. A physical change includes a change in the material without affecting its composition‚ such as the physical state change. However‚ a chemical change includes the change in the composition of the substance. The change in color‚ formation of a gas or a solid product‚ and the production of energy are the evidences of a chemical reaction‚ thus‚ of a chemical change. Materials Crucible tongs Evaporating
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Digestion a. The mouth: salivary alpha enzyme chew food‚ perceive taste‚ moisten food with saliva‚ lubricate food with mucus‚ release starch –digesting (amylase) enzymes‚ initiate swallowing reflex - Enzyme: alpha amylase with cooked starch as substrate – starch digestion enzyme an enzyme that catalyses the breakdown of starch into sugar - The Functions of Saliva - 1. Moistens and lubricates food‚ permitting swallowing 2. Holds taste producing substances in solution and bring them in
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Name___________________ Date ___________________ A Child Called “It” by Dave Pelzer Review Worksheet Chapter 1- The Rescue Part one: Character Identification: Describe who the characters are and what relationship they share with the main character. 1. Dave =________________ __________________________________________________________________________ _______________________________________________________________________________________________________________________________
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Biology Midterm Review Sheet *** This is a general review sheet. It covers the main concepts from each chapter. You should also review your notes‚ vocab notecards‚ quizzes‚ tests‚ and labs to thoroughly prepare for this exam. The midterm will consist of 80 multiple choice and 8 free response questions. Note: For the midterm you will need a blue or black pen‚ a pencil‚ and a calculator. What you should focus on from the textbook: Unit 1- Introduction to Biology (ch. 1) Independent vs
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Soil properties: Some physical and chemical properties of the soil were measured‚ which are presented in Table 1. The availability of nutrients and even contaminants depends on the degree of soil acidity. The most suitable pH for soil microorganism’ activity is 7‚ as nutrient solubility depends on soil pH changes (Riser-Roberts‚ 1998). The soil used in the present study has neutral pH and therefore does not limit the activity of microorganisms or the solubility of nutrients except for phosphorus
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GBL 395 EXAM #1 -‐ TOPICS Jurisdiction -‐Power‚ authority • Impersonal: on person • In rem: on property -‐Basically establish the current USA‚ the central gov. -‐Majority of power belongs to states; empower national gov. with certain authority Federal Court System -‐Administers cases under the
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