What is the function of the gametophyte generation of the fern plant? not multiple choice.
produces reproductive organs which produce a zygote
produces meiospores which grow into a sporophyte plant
produces a new fern asexually
grows as a diploid fern

That would be A. Produces reproductive organs which produce a zygote.

Zygotes grow into the sporophyte(diploid), spores grow into the gametophyte(haploid).

Sporophyte produces haploid spores through meiosis, gametophyte produces gametes through mitosis.

Mg is used to measure mass

This movement is also referred to as  glacial plucking