2Who proposed the five-kingdom system of classification in 1969?aCarl WoesebCharles DarwincRobert Whittaker dCarolus LinnaeusShow answer
4Mutualism is a symbiotic relationship in which:aBoth organisms are harmedbOne benefits, one is harmedcBoth benefit dNeither benefitsShow answer
5Which type of linkage is found in archaeal membrane lipids?aEster linkagebPeptide linkagecEther linkage dGlycosidic linkageShow answer
7What kind of reproduction occurs in Archaea?aSexualbBinary and multiple fission cMeiosisdMitosisShow answer
8Facultative anaerobes:aRequire oxygen to survivebDie in the presence of oxygencCan live with or without oxygen dOnly live in high temperatureShow answer
9Bacteria differ from Archaea and Eukarya by having:aLinear chromosomesbPeptidoglycan in their cell wall cMembrane-bound organellesdA nuclear envelopeShow answer
10What is the unique metabolic process found in Archaea?aFermentationbMethanogenesis cPhotosynthesisdNitrogen fixationShow answer
11The three-domain system consists of:aMonera, Protista, EukaryabArchaea, Bacteria, Eukarya cPlantae, Fungi, AnimaliadProkaryotes, Eukaryotes, FungiShow answer
14Pili and fimbriae help bacteria to:aReproducebAttach to surfaces cPerform photosynthesisdProduce toxinsShow answer
15The genetic material of bacteria is:aMultiple linear chromosomesbsingle, circular chromosome cRNA-baseddDouble helix with histonesShow answer
16Which of the following structures enable bacteria to move?aPilibFimbriaecFlagelladRibosomesShow answer
17Eukaryotes are believed to have originated through:aBinary fissionbSpontaneous generationcEndosymbiosisdBuddingShow answer
18Sexual reproduction in eukaryotes involves:aMitosis onlybConjugationcMeiosis and fertilizationdFragmentationShow answer
