BIO 1144 Notes 1/12
BIO 1144 Notes 1/12 BIO 1144
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This 4 page Study Guide was uploaded by Rocket on Sunday January 17, 2016. The Study Guide belongs to BIO 1144 at Mississippi State University taught by Thomas Holder in Spring 2016. Since its upload, it has received 92 views.
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Date Created: 01/17/16
Bio II Notes Thomas Holder 1/12 Taxonomy and Systematics Ch. 26 Study of classifying and grouping organisms Con: We classify according to physical appearance, what we can visually see +Classified by hierarchical groups Each group level is called aTaxon Dates back to 1753, Cornelius Linnaeus named plants and animals by what appeared to be similar ➢ He proposed the Binomial System of Nomenclature , the 2worded scientific names Ex. Homo Sapiens = “Wise Humans” This system was “artificial”, only humans used the system for communication of species +Developed 5 Kingdom Concept Monera ~ Prokaryotic Cells (those lacking nuclei and organelles) Protista _ Fungi _ Eukaryotic Plantae _ Cells (contain nucleus and organelles) Animalia _ +Taxon Hierarchy => Grey Wolf Kingdom Animalia Phylum Chordata Class Mammalia Order Carnivora Family Canidae Gnanis (noun) Wolf Seupus (adjective) Grey +Systematics Study of biodiversity in evolution relationships Gives the bases for similar 2 species are to each other Takes into account genetics + morphology during comparison +Phylogenetic Trees The closer a branch or arm is the higher % of genetic similarity Prokaryotic + Eukaryotic Diversity Ch.27 +Kingdom Monera 2 Domains => Archaea and Bacteria ➔ Prokaryotic Cells ➔ Lack Nucleus/ Organelles/ Sexual Reproduction ➔ Most abundant in the world ➔ Fossils apprx. 3.5 billion years old, thought to be ancestors to eukaryotes ❖ Archaea Ancient Group Contained “almost” nucleus Had an organelle similar as cytoplasma is to Eukaryotes Specialized Membranes Absolutely love harsh extreme environments ★ Bacteria Proteobacteria “true bacteria” +Cyanobacteria “blue green” Produce food by capturing sunlight Transfer => N2 ● ALL Monera is difficult to determine in evolutionary relationships +Eukaryotic Cells True Nucleus “Compartments” = Cell Organelles/ Internal Membrane System +Kingdom Protista Ch.28 Earliest Eukaryotes Most: Microscopic/ Live in Moist Environment +DNA wise there are many separate groups “Catch All Kingdom” ❏ Algae = “plant like” 10 groups Autotrophs = self feeding usually via photosynthesis Some “ingest” food Unicellular > Multicellular (Giant Kelps) ➢ Protozoans “Animal Like” Heterotrophic = “ingest feeding” Unicellular > Multicellular ❏ Fungal Like Protists “Fungi Like” Saprotrophic = absorb feeding Multicellular
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