Best Answer: B) Evolutionary relationships-This is because the classification system works by grouping together related species that have evolved from common ancestry No others are plausible.
Short for uninterruptible power supply, a power supply that includes a battery to maintain power in the event of a power outage. Typically, a UPS keeps a computer running for several minutes after a power outage, enabling you to save data that is in RAM and shut down the computer gracefully.
With frequent power fluctuations and aging electrical distribution grid, utility power is not always a reliable option. All your important data that you were working on your computer can get erased in a fraction of a second whenever there is a power cut. A UPS is what comes to your rescue in situations like these.