Multiple choice Nature of Aquifex species is: thermophilic halophilic & autolithotrophic chemolithoautotrophic both 1 & 3 lithotrophic Reveal answer Fill a bubble to check yourself D Correct answer Explanation Aquifex species is thermophilic as well as chemolithoautotroph that captures energy by oxidizing the hydrogen, sulfur, thiosulfate with oxygen as the terminal electron acceptor. Original bacterial ancestor is thermophilic & chemolithoautotrophic.