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A stele without a central pith is called a ______?

A stele without a central pith is called a ______?

مرکزی پٹ کے بغیر ایک اسٹیل کو ______ کہا جاتا ہے؟
Explanation
  • A protostele is the simplest type of stele, lacking a central pith.
  • It consists of a solid core of vascular tissue.
  • It commonly found in primitive plants like ferns.