Answer: The antheridium.
- A The archegonium
- B The antheridium
- C The flower anther
- D The pollen sac
Correct answer: B. The antheridium
Explanation: The antheridium produces male gametes; the flask-shaped archegonium is the female sex organ.
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.