BIO153H5 Lecture Notes - Lecture 2: Dian Fossey, Jane Goodall, Erasmus Darwin
Document Summary
Bio 153 lecture notes (two) thursday, january 7, 2016. Science strives to be objective: science is influenced by society, people who shaped science themselves. The idea of change over time was not new: erasmus darwin. Grandfather of charles darwin: jean-baptiste de lamarck, charles darwin. The mechanism of how organism change over time. Lamarck hypothesized about the mechanism that causes diversity: use and disuse, inheritance of acquired characters. Giraffes who stretched their necks will pass out those. What do we require of hypotheses? characterises to offspring: innate drive towards complexity, it has to be testable, need quantitative results, must be able to replicate experiment, it has to be falsifiable. Is the innate drive to complexity hypothesis testable: no. Descent with modification is testable and has support: organism change over time and generations, adapt to environment, ex. Darwin never though they would be a good example. Not observed in detail: refer to slide 7. Single cell organisms are less complex then multi-cellular.
