The Six Kingdoms. When Linnaeus developed his system of classification, there were only two kingdoms, Plants and Animals. But the use of the microscope led to the discovery of new organisms and the identification of differences in cells.A two-kingdom system was no longer useful.Today the system of classification includes six kingdoms.he Six Kingdoms. When Linnaeus developed his system of classification, there were only two kingdoms, Plants and Animals. But the use of the microscope led to the discovery of new organisms and the identification of differences in cells.
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STC stands for Small-scale Technology Certificate. It is a scheme developed by the Federal Government to encourage more people to install renewable energy systems and to make it more affordable for everyone. You might find some people refer to them as a rebate. However this is really untrue.