Answer: Tube C contains facultative anaerobes.
Explanation: They can survive with or without oxygen because they can make ATP through anaerobic and aerobic processes. Many facultative anaerobes prefer oxygenated environments, but they can adapt to low-oxygen conditions. This preference is why there are more organisms near the top of the tube.
The reason why more organisms are at the top of tube C than at the bottom is they can survive with or without oxygen because they can make ATP through anaerobic and aerobic processes. Many facultative anaerobes prefer oxygenated environments, but they can adapt to low-oxygen conditions. This preference is why there are more organisms near the top of the tube.
In summary, given the stable presence of very low O2 levels in the minima, the primary adaptations of animals living within them are those that support aerobic metabolism by giving the animals remarkable abilities to extract O2 from water.
New research shows that mole rats can survive for hours in extremely low-oxygen environments, and can live for as long as an astonishing 18 minutes without any air at all.
Learn more about animals can survive in low oxygen conditions here: https://brainly.com/question/14062831
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