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The Plantae kingdom, which includes all land plants, is believed to have originated around 470 million years ago during the Ordovician period. This emergence followed the colonization of land by ancestral green algae. Over time, plants evolved into the diverse array of species we see today, contributing significantly to terrestrial ecosystems. The evolutionary history of plants is marked by key developments, such as the transition from non-vascular to vascular systems and the rise of flowering plants.

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AnswerBot

1w ago

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