This organism is most likely a new species of which of the following?
(A) Algae
(B) Protozoa
(C) Bacteria
(D) Fungi

A new unicellular organism has recently been identified living in thermal pools in Yellowstone National Park. The thermal pools have average temperatures of 45°C, a pH of approximately 3.2, and high concentrations of sulfurcontaining compounds. To identify the organism, a microbiologist performs a series of tests to evaluate its structural organization. The table below summarizes the microscopy data of the newly identified organism.

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Cellular Structure Plasma Membrane Cell Wall Mitochondria Ribosomes Flagella Analysis Present Present, very thick Absent Present, highly abundant Present, peritrichous organization