I would say C Duplication since both of the DNA sequences are identical.
Producer.
I remember it by thinking: "auto means automatic, so autotrophs automatically make their own food, so they must be producers"
The answer is attached in a file please read it
The kingdom that includes both unicellular and multicellular organisms is Protista.
Geothermal energy for heating. Solar power, or HydroElectric energy. The most efficient/Ideal one would HydroElectric energy. The reason why I say this is because HydroElectric energy does not pollute the environment, or produce harmful fumes. It also produces a lot of energy to power multiple homes.