Adaptation of Bacteria with Dual Respiration Mechanisms

Very Hard Biology Microbiology

A microbiologist is investigating a novel bacterial species isolated from a deep-sea hydrothermal vent. Initial sequencing reveals that this bacterium possesses a complete set of genes for both aerobic and anaerobic respiration pathways. This finding raises questions about the ecological niche and adaptability of the organism. Which of the following statements most accurately describes the implications of possessing both aerobic and anaerobic respiration pathways for this bacterium?

It can only survive in oxygen-rich environments as it primarily uses aerobic respiration.

It is likely adapted to variable environmental conditions, allowing it to thrive in low or no oxygen environments.

It will predominantly rely on anaerobic respiration regardless of the available oxygen levels.

It indicates a symbiotic relationship with other organisms that provide it with necessary nutrients.

Hint

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