BIO 120 Objectives 5 General Zoology BIO 120 Lecture NOVA Loudoun Campus Fall 2013 Chapter 5 Objectives Please respond to the following questions in preparation for the lecture evaluation on this material 1 How many species have been catalogued How many species are likely awaiting discovery 2 What are the prokaryotes and eukaryotes 3 What are the four pillars upon which the natural world rests HINT students should understand the unity of life diversity of life biological adaptations and history of life 4 What is evolution What are the five subtheories or mechanisms of evolution HINT students should understand perpetual change common descent multiplication of species gradualism and natural selection What are microevolution and macroevolution 5 What are mutation genetic drift and gene flow 6 What four components of natural selection HINT students should understand variation in traits differential reproduction due to advantageous adaption heredity and long term result 7 What are homologous and analogous structures HINT students should be able to provide an example of each What is convergent evolution 8 What is the three domain tree of life HINT students should be able to recreate Figure 5 5 and include the terms prokaryotes eukaryotes bacteria archaea eukarya and universal ancestor 9 What is taxonomy What is the three domain kingdom model What is morphology What is phylogenetics classification 10 What is binomial nomenclature What are the seven general levels of hierarchal BIO 120 Objectives 5 1 5 million species have been catalogued 10 100 million species await discovery Prokaryotes no nucleus nucleic acid is not protein wrapped or membrane bound Eukaryotes true nucleus Four Pillars of Natural World Unity of life shared processes of organisms i e DNA Diversity of life lots of different life forms Biological adaptations organisms fit their environment History of life life forms evolved from a common ancestor Evolution change over time Subtheories Perpetual change changing to fit environment Common descent all have a common ancestor divergence over time Multiplication of species speciation Gradualism slow changes over time gradual process Natural selection mechanism of evolution Microevolution small scale tracking genes small events Macroevolution large scale speciation Mutation change in genetic structure Genetic drift change in frequency of alleles in gene pool Gene flow flow of genes in and out of genetic pool i e immigration and emigration Natural selection Heritability Variation Long term result other traits appear in gene pool Differential reproduction Homologous same ancestry different function divergence Analogous different ancestry same function convergence Three domain tree of life Bacteria prokaryotes Archaea prokaryotes Eukarya eukaryotes Taxonomy how to name and classify animals and organisms Phylogenetics organize organisms based on evolutionary relationships Morphology study of organism shape and function Binomial nomenclature uniform approach to name organisms Hierarchal classification Domain Kingdom Phylum Class Order Family Genus Species BIO 120 Objectives 5
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