Biology 2485B Chapter Notes -Divergent Evolution, Hominidae, Exponential Growth
9 Oct 2014
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Science: is a systematic process for learning about the world and testing our understanding of it. Democratization of science: making the science of the world accessible and understandable to as many people as possible. Scientists test ideas by critically examining evidence (pg. The scienti c method is a key element of science (pg. Adaptive trait or adaption: a trait that promotes success. Natural selection acts on genetic variation (pg. 93: for an organism to pass a trait along to future generations (for the trait to heritable) genes in the organism"s dna must code for the trait. Mutations: accidental changes in dna which can be caused by addition, deletion or substitution of single nucleotides to the insertion of deletion of large section of dna. Dna is copied millions of times by millions of cells, which is where dna ! Disruptive selection: both extremes are favoured mistakes can occur. Selective pressures from the environment in uence adaptation (pg.
