Biology, class 9

Sindh and KP publish what is architecturally the same book: nine chapters in the same order — introduction to biology, solving a biological problem, biodiversity, cells and tissues, cell cycle, enzymes, bioenergetics, nutrition, transport — both written to National Curriculum 2006, and no board difference should be manufactured from them. Punjab's eleven-chapter NC-2023 volume adds Biomolecules, Reproduction in Plants and a full Biostatistics chapter ("biostatistic" occurs 28 times in Punjab against two in KP and one in Sindh, "median" 25 times against zero in both), drops Nutrition as a standalone chapter and folds transport into a wider Plant Physiology chapter. The boards are not on the same curriculum generation and it cuts one way: COVID-19 is defined substantively in Punjab at p.36 and returns as the worked public-health example in the Biostatistics chapter at p.168, while Sindh's and KP's books contain none — KP's carries a DCTE NOC dated 23-02-2018 and is merely "Printed for Academic Year: 2025-26". The honest framing is Punjab's current book against the book Sindh and KP are currently printing. All three score A1 3, and structurally for the same reason: each opens with a dedicated Quranic section quoting Al-Anbiya 30 and Al-Nur 45. What surrounds it differs. Sindh reads the water verse materially — "Here water is symbolized with the protoplasm as the basis of life" (§1.1.3) — then runs §1.1.4 Contribution of Muslim Scientists, examined by "Describe the role of Muslim scientists in the field of biology"; KP runs the parallel §1.7 at p.19. Punjab keeps the scripture, glosses it as "the common origin and modification of animals" (pp.12–13), and has no Muslim-scientist section at all. Sindh alone scores A7 4 rather than 5, as the only science book in the corpus that treats gender as a subject. Punjab kept the Quran in its biology book and dropped the Muslim scientists; Sindh and KP kept both, in a book written before COVID-19 existed.