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.
The loss of electric power interrupts some vital digital communications networks, advanced medical therapies, financial transactions such as credit cards and bank operations, elevator service, refrigeration and other essential services. This equipment is so critical that there is a great demand for non-stop electric power. There are many ways to provide auxiliary power for times when the public supply goes down. We may think first of backup generators, but there are other devices available, including flywheel generators and battery/inverter systems.