Identify a microorganism in the human mouth

Reference no: EM132891800

Question: Methanobrevibacter smithii (M. smithii) is a single-celled microorganism found in the human intestine. The photograph shows M. smithii.

(i) Calculate the magnification of this photograph. Give your answer in standard form to two significant figures.

(ii) Explain which type of microscope was used to take this photograph.

(b) Scientists classified this microorganism as a species in the domain Archaea.

(i) Describe the information the scientists would have used to classify M. smithii into the Archaea domain.

(ii) Scientists have identified a similar microorganism in the human mouth. This microorganism is called Methanobrevibacter oralis (M. oralis).

Explain how the scientists could confirm that M. smithii and M. oralis are different species of Archaea.

Reference no: EM132891800

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