In ferns, xylem is

Options :
  1. exarch
  2. mesarch
  3. endarch
  4. polyarch
Answer and Explanation :-

Answer: Option 2

Explanation:

Mesarch: When in xylem, protoxylem and metaxylem are mixed then in ferns xylem becomes mesarch.

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For like a shaft, clear and cold, the thought pierced him that in the end the Shadow was only a small and passing thing: there was light and high beauty for ever beyond its reach.
-J.R.R. Tolkien The Return of the King