Interreach variability and correlation analyses between biotic and abiotic factors of the Old Chelsea stream BIO2129 Section Demonstrators: October 1‚ 2014 Department of Biology Hypotheses Water quality parameters such as pH‚ dissolved oxygen‚ seston‚ water temperature etc. are important variables in the abundance and diversity of benthic macroinvertebrates of the Old Chelsea stream. Therefore‚ it can be hypothesized that pH and dissolved oxygen have a direct correlation on biotic factors
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The Nuclear Weapon Controversy The question of whether countries should have nuclear weapons or be able to test them is a very controversial topic among the public. "A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions‚ either fission or a combination of fission and fusion." (Vicky: "Nuclear Weapon"). The destructive atomic bomb is an example of a nuclear weapon. The United States used the atomic bomb to destroy the cities of Hiroshima and Nagasaki‚
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What are the dependent and independent variables? What are your controls - both positive and negative? How will you collect your data? How will you present your data (charts‚ graphs‚ types)? How will you analyze your data? Observations 1. A plant grows three inches faster per day wWhen Sally eats healthy foods and exercises regularly‚ her blood pressure is 10 points lower than when she does not exercise and eats fatty foods. 4. The Italian restaurant across the street closes at 9
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b 1 Exercise 1: Dissolved oxygen is oxygen that is trapped in a fluid‚ such as water. Since virtually every living organism requires oxygen to survive‚ it is a necessary component of water systems such as streams‚ lakes and rivers in order to support aquatic life. The dissolved oxygen is measure in units of ppm—or parts per million. Examine the data in Table 2 showing the amount of dissolved oxygen present and the number of fish observed in the body of water the sample was taken from; finally
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solution Red-Orange Ni(NO3)2 Transparent‚ blue Green-Blue Unknown A Colourless solution Green Unknown B Colourless solution Light Purple Unknown C Colourless solution Bright Orange Unknown D Colourless solution Dark Red Questions: 1. Unknown A Ba(NO3)2 Unknown B KNO3 Unknown C NaCl (aq) Unknown D Sr(No3)2 2. The ranking would be as follows: Sr(NO3)2 ‚ LiNO3‚ Ca(NO3)2‚ NaNO3‚ Solid NaCl‚ NaCl‚ Ba(NO3)2‚ Cu(NO3)2‚ Ni(NO3)2 and lastly KNO3. 3. Most of the anions are
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Rousselle Molina Ms.Moraima Group 2; HW 1 9-25-12 EVOLUTION; NATURAL SELECTION I.ABSTRACT: As we all know‚ evolution is a change in population over a period of time. Natural Selection as its own mechanism takes place for survival of the offspring from varying changes of the environment. One good example of natural selection is the population of peppered moth predominant in England. During pre-industrial revolution‚ there were highly significant light colored moths that
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Lab 1 Installing Servers This lab contains the following exercises and activities: Exercise 1.1 Exercise 1.2 Lab Challenge Performing a Clean Installation Installing Windows Server Migration Tools (WSMT) Accessing a WSMT Distribution Point BEFORE YOU BEGIN The lab environment consists of computers connected to a local area network. The computers required for this lab are listed in Table 1-1. Table 1-1 Computers Required for Lab 1 Computer Operating System Computer Name New server
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1) Relate how Windows Server 2008 R2 Active Directory and the configuration of access controls achieve CIA for departmental LANs‚ departmental folders‚ and data. a. By having domains and access rights and permissions‚ an administrator can achieve confidentiality‚ integrity‚ and accountability by controlling what files and resources a user can access. 2) Is it good practice to include the account or user name in the password? Why or why not? a. No it is not good practice because it makes it
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subtitle] | | katie | [Pick the date] | Compare nuclear testing in Australia and the Pacific Islands. What are the significant similarities and differences? Were they due to environmental or political factors? | Title ____________________________________________________________ ____________Introduction 150 words (do last) ___________________________________________________________H istory of Nuclear Weapons Nuclear energy is produced from the splitting of the nucleus of
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in the discharge tube. A fluorescent glow appeared on the glass opposite to cathode. The colour of glow of the glass depended on the type of glass‚ it being yellowish-green for soda glass. The cause of this fluorescence was attributed to the radiation which appeared to be coming from the cathode. These cathode rays were discovered‚ in 1870‚ by William Crookes who later‚ in 1879‚ suggested that these rays consisted of streams of fast moving negatively charged particles. The British physicist
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