Answer: Polyembryony is common.
- A Double fertilization
- B Vessels in xylem
- C Polyembryony is common
- D Fruit formation after fertilization
Correct answer: C. Polyembryony is common
Explanation: Polyembryony (presence of multiple embryos in a seed) is common in gymnosperms (e.g., Cycas, Pinus). Gymnosperms lack double fertilization and vessels (except Gnetum). They do not form true fruits.
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.