The Earth’s history has had a significant effect on the characteristics of its organisms and biomes. How was the Carboniferous period different from the Devonian period?

The Devonian already had land plants, forests, and early four-legged vertebrates. During the Carboniferous, vast swamp forests spread and land-based organisms, including amphibians and insects, became more abundant. So the best answer is “There were an increased number of land-based organisms in the Carboniferous period.”

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