Answer: Four.
- A Two
- B Three
- C Four
- D Five
Correct answer: C. Four
Explanation: The plant kingdom has four major groups: Thallophyta (algae), Bryophyta, Pteridophyta, and Spermatophyta (seed plants = gymnosperms + angiosperms).
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.