Biology Praxis 5235 Latest Update with Verified Solutions

Biology Praxis 5235 Latest Update with Verified Solutions Scientific Method 1) Observation 2) Research 3) Hypothesis 4) Test the hypothesis 5) Analysis of Data 6) Conclusion 7) Communication Anton van Leeuwenhoek Created the microscope and observed microorganisms Carolus Linnaeus Created the binomial nomenclature system for classifying species Georges Cuvier Established extinction as a fact Jean-Baptiste Lamarck Proposed teleological evolution Matthias Schleiden Stated that plants are made of cells Rudolf Virchow Stated that cells can arise only from pre-existing cells Louis Pasteur Developed pasteurization (killing of harmful microorganisms) and the germ theory of disease Gregor Mendel Discovered the basics for genetics and laws of inheritance James Watson and Francis Crick Described the helical nature of DNA based on work by Rosalind Franklin and began the field of molecular genetics Independent variable Is the factor being tested Dependent variable Is the factor being measured SI Units "Kangaroos Hop Down Mountains Drinking Chocolate Milk." Kilo - Hecto - Deca - Meter/Gram/Liter - Deci - Centi - Milli Precision refers to how close several measure values are to each other Accuracy how close the measured values are to the true or actual value Chi-square A statistical test often used in biology to compare observed data with expected data for a particular hypothesis to determine the goodness of fit for the data Percent Error (theoretical value - experimental value)/theoretical value and then everything is multiplied by 100 Material Safety Data Sheet (MSDS) Documents the features for a particular chemical Five Common chemical hazards in lab Flammables, corrosives, oxidizers/reactives, toxins, mercury Noninfectious biological materials Not a