Biology 101 Exam #1 Questions With Correct Answers!!

Define Zoology -ANSWER Subdivision of Biology (study of life), Scientific study of animals What is an animal? -ANSWER Animals are multicellular (composed of multiple eukaryotic cells; "division of labor"). Animals are heterotrophic (consume raw materials from the environment in order to live) What is science? -ANSWER Tendency to treat science as a body of facts, Dynamic. "Modern science seeks to explain natural phenomena in natural terms" Distinguish between scientific facts, hypotheses, theories, and laws -ANSWER Fact: observation that has been repeatedly confirmed; can be overturned Hypothesis: tentative statement about a natural phenomenon that can be tested; supported or refuted Theory: highly probable, well-tested and substantiated explanation of a natural phenomenon based on a large collection of observations and experiments (ability to consistently predict new phenomena) Law/ Principle: description of observed phenomena; based on empirical data and can typically be defined mathematically What is the hypothetico-deductive approach to science -ANSWER Observation Question Hypothesis Empirical test Conclusion What is the difference between the comparative and experimental methods? -ANSWER For the experimental method, you Manipulate a variable in an experimental group and compare to a control group. For the comparative method, Observations are compared to those predicted by the hypothesis