1. Tardigrade
  2. Question
  3. Biology
  4. Consider the following statements: I. The plant life cycle alternates between a haploid phase and a diploid phase. II. In primitive plants the gametophytes are usually free living whereas in the seed bearing plants the gametophytes are sexually dimorphic and develop within the sexual organs. III. The structure of female gametophyte and the fertilization process are distinctive features of the two phylogenetic groups of seed plants [gymnosperms and angiosperms]. The correct statements are

Q. Consider the following statements:
I. The plant life cycle alternates between a haploid phase and a diploid phase.
II. In primitive plants the gametophytes are usually free living whereas in the seed bearing plants the gametophytes are sexually dimorphic and develop within the sexual organs.
III. The structure of female gametophyte and the fertilization process are distinctive features of the two phylogenetic groups of seed plants [gymnosperms and angiosperms].
The correct statements are

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Solution:

The plant life cycle alternates between gametophytic [haploid] phase and sporophytic [diploid] phase. In primitive plants gametophytes are free living while in seed plants male and female gametes are different in structures. Embryosac structure and fertilization process are significant in seed plants.