Biology 1M03 Midterm1 Exam Questions And Answers
Biology 1M03 Midterm1 Exam Questions And Answers characteristics of living organisms - ANS - made up of 1 or more cells - processes and carries info - reproduces/replicates - evolves and changes - uses energy cell theory - ANS all organisms are made of cells and cells from pre-existing cells Louis Pasteur experiment - ANS tested growth in flasks of broth; no growth in the flask where the top was sealed Darwin & Wallace's theory of evolution - ANS all species are related by common ancestry; species change from gen to gen via selection of heritable traits evidence for evolution - ANS - fossils - extinction - transitional forms - vestigial traits why is the myth about evolution being goal oriented false? - ANS species do not adapt because they "want" or "need" traits; they adapt them because an ancestor with that triat just so happened to reproduce sooner or more successfully than others why is the myth that evolution is a hierachy false? - ANS evolution is more a network of evolutionary paths; the size of a genome does not necessarily equate to complexity why is the myth that behavious is selfless in animals false? - ANS all "selfless" traits are not favoured because they would kill the organism; those who are selfless are killed off why is the myth that natural selection leads to the best phenotype false? - ANS there are constraints and trade offs to consider
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