Sources

Every chapter title, content standard, paper format, duration and mark count on this site is taken from the official documents below, published by the Ministry of Education Malaysia (KPM), the Curriculum Development Division (BPK) and the Malaysian Examinations Board (LP). Each fact on a page links back to its source here.

Source	Publisher	Used for	Link	Status
DSKP KSSM Biology Form 4 and 5 (Versi English) (SRC-DSKP-EN)	Bahagian Pembangunan Kurikulum (BPK), KPM	Chapter titles (EN), content & learning standards, suggested activities/experiments, science process skills	PDF	verified
DSKP KSSM Biologi Tingkatan 4 dan 5 (Bahasa Melayu) (SRC-DSKP-MS)	BPK, KPM	Chapter titles and standards in BM (official Malay terminology)	PDF	not_found
SPM Format Pentaksiran mulai 2021, Biologi (4551) (SRC-FORMAT)	Lembaga Peperiksaan (LP), KPM	Paper codes, durations, item types/counts, marks, sections, construct weightings, difficulty ratio, elements assessed	PDF	verified
Portal Rasmi Lembaga Peperiksaan (SRC-LP)	LP, KPM	SPM timetable, registration, private candidates, results announcements	WEB	verified
Portal Bahagian Pembangunan Kurikulum (SRC-BPK)	BPK, KPM	Curriculum notices, DSKP revisions	WEB	verified
Buku Teks KSSM Biologi Tingkatan 4 / Tingkatan 5 (DBP) via DELIMa (SRC-TEXTBOOK)	Dewan Bahasa dan Pustaka / KPM	Title/year citation only; no content reproduced	WEB	reference_only

Note: BPK publishes the KSSM science DSKP in English only, so Malay and Chinese chapter and term titles on this site are our own editorial translations using standard Malaysian science terminology. Practice items on this site are original.