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105 观看346:35MahimaIslam-bn8kx原视频发布: 2026-05-19

This video provides a comprehensive lesson on flower anatomy and plant reproduction, covering the calyx (outermost protective layer), corolla (second outermost layer with petals), androecium (male reproductive part with anther and filament), and gynoecium (female reproductive part with stigma, style, and ovary). The video explains that carpels can be fused (syncarpus) or separate (polycarpus), and demonstrates the process of female gamete production through detailed cellular division stages, including the formation of the embryo sac with synergids and antipodal cells.

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