____ is a plant hormone that was first discovered for its ability to promote growth, but it was later discovered to have a critical role as a master coordinator of plant development.

Question

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Auxin was the first plant hormone to be discovered and is known for its role in promoting elongation growth in plant cells. It has since been found to play a central role in coordinating various aspects of plant development, including cell division, elongation, and differentiation.

____ Is a Plant Hormone That Was First Discovered for Its