The term that applies to a super ecosystem with dominant plants and animals is a biome, and the one that is also the "spruce-moose" biome is taiga.
A biome is a vast area of the world where:
In other words, it is a super ecosystem due to the size and amount of its elements.
The taiga is the largest biome since it is present in Canada, Alaska, Europe, and Asia. It is a boreal forest that characterizes by having a high number of spruce and moose. There also are pines, bison, and bears.
To sum up, a biome is a super ecosystem, and an example of it is the taiga biome which covers large parts of Canada, and one of the dominant species is the spruce and moose.
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