BIOL 1009 Study Guide - Final Guide: Phospholipid, Retrovirus, Aposematism
Document Summary
Evolution is a pattern and a process: pattern- evolution above the species level (macroevolution) How different species are related to each other as part of the tree of life: process- change in frequencies of different trait variants (frequency of alleles) within populations over time. Natural selection is a mechanism (only one that leads to adaption) Caused biologists to focus on the essential nature of each species and ignore variation within. Major roadblock: linnaus- first to classify organisms into nested categories based on how similar they were to each other. Still use to some degree (domain, kingdom etc. ) James hutton and charles lyell: important for helping us realize the earth had to be older than previously thought. Fossils (used to think they represented species that existed in some. Jean-baptiste lamark undiscovered part of the world: used evidence from fossils to propose that species change through time, mechanism wasn"t correct (thought that somatic changes during an individual"s life could be inherited.
