A few organisms are known to grow and multiply at temperatures of 100 – 105ºC. They belong

Options

(a) marine archaebacteria
(b) thermophilic sulphur bacteria
(c) hot-spring blue-green algae
(d) thermophilic, subaerial fungi

Correct Answer:

marine archaebacteria

Explanation:

Archaea (archaebacteria) are a phenotypically diverse group of microorganisms that share a common evolutionary history. There are four general phenotypic groups of archaea: the methanogens, the extreme halophiles, the sulfate-reducing archaea, and the extreme thermophiles. In the marine environment, archaeal habitats are generally limited to shallow or deep-sea anaerobic sediments (free-living and endosymbiotic methanogens), hot springs or deep-sea hydrothermal vents (methanogens, sulfate reducers, and extreme thermophiles), and highly saline land-locked seas (halophiles).