BIOL 2400 MIDTERM EXAM QUESTIONS AND ANSWERS

BIOL 2400 MIDTERM EXAM QUESTIONS AND ANSWERS biological evolution - ANS any change in inherited traits over generations in one population lineage - ANS a chain of ancestors and their descendants natural selection - ANS leads to evolution, mutation that enable a species to bettie survive and reproduce in its environment making them better then others synapomorphy - ANS a homologous trait that is derived form of a trait the is shared by a group of related species that was inherited from their immediate common ancestor ex) hole in dinosaur pelvis phylogeny - ANS visual representation of evolutionary history of population genes and species mutation - ANS is any change to the genomic sequence of an organism viral reassortment - ANS occurs when genetic material from different strains gets mixed into new combinations within a single individual genetic drift - ANS evolution arising from random changes in the genetic composition of a population from one generation to the next phenotypes - ANS visuals and measurable aspects of organisms, morphology, physiology and behavior taxa - ANS groups of organisms that a taxonomist judges to be cohesive units, such as species or orders taxonomy - ANS the science of describing, naming and classifying species of living or fossil organisms stratigraphy - ANS the study of layering rock What is William Paley theory? - ANS over time things and organisms went from simple to complex Carl Linnaeus - ANS - -invented taxonomy -things were made perfect -humans weren't related to monkeys -only studied phenotypes -came up with binomial naming system What did Nicolaus Steno study? - ANS studies stratigraphy