Answer: Angiosperms.
- A Bryophytes
- B Pteridophytes
- C Gymnosperms
- D Angiosperms
Correct answer: D. Angiosperms
Explanation: Angiosperms show the most reduced gametophyte. The male gametophyte is just a 2/3-celled pollen grain; the female gametophyte (embryo sac) has only 7 cells (8 nuclei).
Plants evolved from water-dependent algae through increasingly land-adapted groups, gaining vascular tissue (Pteridophyta), then seeds (Gymnosperms), and finally fruit-enclosed seeds (Angiosperms) - each step reducing dependence on water for reproduction.
Concept context
Classification of plants from algae to angiosperms. Understanding plant diversity is essential for NEET.