LING 300 Lecture Notes - Lecture 3: Convergent Evolution, Beringia, Helicobacter Pylori
Document Summary
Biol 1001; lecture 2 scienti c method; darwin"s evidence for evolution; theory of natural selction. A theory is a hypothesis that has being proven and establish by experimentation and is accepted by know facts. The scienti c method: ask a question, formulate a hypothesis, perform an experiment, collect data, draw a conclusion. What"s wrong with the simpli ed linear scienti c method: science is done by individual scientist alone and has little room for creativity, it follows one-way recipe, it concludes. His patient alexis martin had stula ( a hole to the outside of the body) Hypothesis is proposing an explanation for an observation: must establish alternative explanations for a phenomenon and generate testable predictions. Believed he found bacteria (helicobacter pylori) in the stomach: used a stain that highlights bacteria on his slides and hypothesized that h. pylori (bacteria) causes ulcers. 3 other hypothesis that could be a possible explanations of why there were bacteria on.
