What type of bacteria support the idea that the first cells originated at deepsea vents?

a.chemoautotrophs


b. cyanobacteria


c. halophiles


d. chemiheterotrophs








also:





a sex pilus helps transfer dna between 2 bacteria this process is called


a.transduction


b.conjugation


c.transformation


d.fimbriael attachment








botulism is possible because of the formation of


a. heterocysts b. capsules c.slimelayers d.endospores








the bacteria that live in the nodules of roots of soybeans are called


a.decomposers b.nitrite converters c.rhizobium d.mychorrizae








what type of bacteria first introduced oxygen into the atmosphere?


a.purple bacteria b.chemoheterotrophs c.lichen d.cyanobacteria








which of the following do not contain peptidoglycan in their cell walls?


a. cyanobacteria b.gram-positive bacteria c.archaea d. oscillatoria











THANK YOU SO MUCH

What type of bacteria support the idea that the first cells originated at deepsea vents?
1. a. Chemoautotrophs originated at deepsea vents.





2. b. Conjugation is mating of two bacteria via pili.





3. d. Clostridium botulinum is the bacterium that causes botulism, and survives as endospores.





4. c. Rhizobium is the bacterium that lives in the root modules of soybean.





5. d. Cyanobacteria is the first organism to produce oxygen.





6. c. Archaea is not a bacterium at all, and so does not have a peptidoglycan cell wall.
Reply:A


B


D


C


D


B