Scientists warn that increasingly rapid melting of the polar ice caps could trigger catastrophic consequences. Which of the following would be affected by a decrease in populations of psychrophilic microorganisms?

A. Psychrophilic microorganisms perform vital roles in worldwide biogeochemical cycles and are a large contributors to earth's biomass
B. Psychrophiles have cold-active enzymes that have applications in, for example, the textile, food and dairy,
C. Psychrophiles are sources of the enzyme DNA polymerase, which is used in the polymerase chain
D. Psychrophiles succeed in extreme living conditions by optimizing various basic cell processes, such as contributor to Earth's biomass. brewing and wine, and laundry industries. reaction (PCR) for DNA fingerprinting. nutrient transport and cell membrane function, and researchers are working to exploit these adaptations for human benefit.