Bio 102 Exam I Notes

Bio 102 Exam I Notes - CLASSIFICATION TAXON theory and...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: CLASSIFICATION TAXON theory and practice of classifying organisms in a formal unit. Algae has no true taxonomic grouping. Informal Systematics understand evolutionary relationships. Systematics goes beyond taxonomy.-stable names used all over the world. CARL VON LINNNE classified both plants and animals. Changed name to Carolus Linnaeus. Darwin 1859 taxonomy became systematics. Phylogeny relations. Family tree for organisms. For grouping. Bioinformatics biological computing. Includes the storage, retrieval, and comparison of DNA sequences within a given species and among different species. Uses computers computers and sophisticated software to manage and analyze large amounts of data generated by sequencing and other technologies. TAXONOMIC LEVELS K ingdom P hylum C lass O rder F amily G enus (pl. Genera) S pecies “Kinky People Come Over For Good Sex” Species basic unit of classification. Organism different from other organisms. Biological Species Concept Developed by Ernest Mayr. Studied evolutionary biology. Believes species are real. Biological Species “A population or group of populations whose members have potential to interbreed with another in nature to produce fertile offspring, but cannot successfully interbreed with members of other populations” Morphospecies Concept classified plants and other organisms into separate species based on their structural differences. Binomial System of Nomenclature System of naming a species by the combination of genus name and a specific epithet. BINOMEN HOMO SAPIENS specific epithet QUERCUS ALBA Means WHITE Homologous Characters alike because inherited from common ancestors. Fig 17-11 Monophyletic Taxon Represents single Evolutionary Line. SUBKINGDOM EUMETAZOA-Well defined tissues and true organs.-Radial symmetry (Branch Radiata) Phylum Cnidaria (“Coelenterata”) kind of digestive cavity these animals have.-Coelentheron Digestion. Now called Gastrovascular Cavity.-Have Special Stinging Cells called CNIDOCYTES. Cnidocytes have Nematocysts release poisons. JELLYFISH ARE PART OF THIS PHYLUM. CLASS HYDRA Outer layer epidermis Inner layer lines gastrovascular cavity gastrodermia. Middle layer Mesoglea OBELIA has polyp and medusae. POLYP reproduce ASEXUALLY MEDUSAE Reproduce Sexually. Class Hydrozoa Polyp dominant….live LONGER. CLASS SCYPHOZOA MEDUSA STAGE DOMINANT (jellyfish) CLASS ANTHOZOA ONLY POLYP STAGE.(FLOWERS AND CORALS)-GASTROVASCULAR AND HAVE NO ANUSES. PHYLUM CTENOPHORE-BILATERALLY SYMMETRICAL-has epidermis and gastrovascular cavity.-has small anus, also gets rid of waste through mouth....
View Full Document

Page1 / 26

Bio 102 Exam I Notes - CLASSIFICATION TAXON theory and...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online