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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.one half of her should not be always so much wiser than the other half.
-Jane Austen Persuasion