Gymnosperms and angiosperms, which are seed plants, alternate between ( 2 ) generations.

Gymnosperms are non-flowering plants with (EXPOSED SEEDS)

and angiosperms are flowering plants with . ( PROTECTED SEEDS)

Sporophytes produce spores for reproduction. In seed plants, the male reproductive structure produces , (MICROSPORES)

and the female reproductive structure produces . (MEGASPORES)

Gametophytes produce (GAMETES)

through the process of . (MITOSIS)

Answers are in the question yw :)