Question

A Prothallus is
O
A structure in pteridophytes
formed before the thallus develops
A sporophytic free living structure
formed in pteridophytes
O
A gametophyte free living
structure formed in pteridophytes
O
A gametophyte free living
structure formed in pteridophytes​

Answer 1

Answer:

3

Explanation:

A prothallus, or prothallium, (from Latin pro = forwards and Greek θαλλος (thallos) = twig) is usually the gametophyte stage in the life of a fern or other pteridophyte. Occasionally the term is also used to describe the young gametophyte of a liverwort or peat moss as well.

Answer 2

Answer:

A gametophyte stage in the life of a fern or other pteridophytes