An Organism Has Been Discovered That Appears to Forego Metabolizing

question 4

Multiple Choice

An organism has been discovered that appears to forego metabolizing phosphorous to instead metabolize arsenic.Phosphorous is essential to all living things.Why might this organism have evolved a way to metabolize arsenic in place of phosphorous?

• A) Because they differentiated and randomly mutated a way to exploit a resource all other organisms were not consuming.
• B) The organism experienced a bottleneck event.
• C) The organism evolved in a harsh environment that selected for this biochemical mechanism.
• D) It is a morphological trait that protects it from predators since many organisms will die if they eat arsenic.

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