A prothallus is

January 31, 2022

A. a structure in pteridophytes formed before the thallus develops

B. a sporophytic free-living structure formed in pteridophytes

C. a gametophyte free-living structure formed in pteridophytes

D. a primitive structure formed after fertilization in Pteridophytes

Answer: a gametophyte free-living structure formed in pteridophytes