LSU Biology 1002 Test 1 Pomarico Questions and Answers with complete solution

Phylogeny - the evolutionary history of a species Dichotomous branching involves lines branching into how many parts? - 2 In addition to the classification of organisms, the field of taxonomy also includes - the naming of organisms Three Domains of Life - Bacteria, Archaea, Eukarya Approximately how many species have been named world-wide? - 1,500,000 An organism with prokaryotic cell structure could be classified in the Domain/s? - Bacteria and Archaea An organism with genetic material containing introns and with multiple RNA Polymerase enzymes could be classified in the Domain/s? - Archaea and Eukarya An organism with a membrane bound nucleus and membrane bound organelles could be classified in the Domain/s? - Eukarya Bacteria and Archaea utilize what nutritional modes? - Photoautotroph, chemoautotroph, chemoheterotroph Photohetertrophs utilize what as an energy source? - Light What is considered to be alive? - ArchaeansViruses are composed of two main components: - nucleic acid and proteins Viroids are composed of -RNA Prions are - mis-folded proteins An organism made up of many cells living together, but which could survive as single independent cells would be said to be: - colonial Plant bodies are generally divided into two sections: - the shoots and roots