Biol 198 Module 1 Exam Questions and Correct Answers

Spectrophotometer ? An instrument that measures the concentration of solution by the absorbance by shining a beam of light at the solution What is the Basic Scientific Method? 1.) Accumulate Data or Observant 2.) Formulate a Hypothesis 3.) Observation & Experimentation 4.) New Data 5.) Conclusion 6.) Theory What is a Theory? Describing a hypothesis, or a set of hypothesis, that is substantial amounts of data from diverse lines of investigation A Variable is? Is some condition of the experimental setup that can be manipulated by the experimenter Control Experiments ? Is a set up where the variable isn't introduced, so that it can be directly compared to the experimental situation where the variable is included Experiments ? Are manipulations of the experimental system, followed by additional observations. What are unifying characteristics of living things? Living Things: - Respond to the environment - Assimilate and use energy from their environment - Maintain a relatively constant internal environment, even as the external environment changes - Reproduction and can evolve - Are highly organized, relative to their environment What is the Biological Hierarchy from largest to smallest ? 1.) Biosphere 2.) Ecosystem 3.) Community 4.) Population 5.) Organism 6.) Organ system 7.) Organ 8.) Cell 9.) Macromolecule 10.) molecule 11.) atom