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BCSWritten
BCS written syllabus
General and technical cadres · 235 pages
Compulsory subjects and post-related subjects for professional and technical cadres. Confirm the applicable subject code in the recruitment notice.
Published by BPSC. Collected 2026-11-14. Confirm the edition and subject against your recruitment notice before studying.
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SYLLABUS FOR BCS (WRITTEN) EXAMINATION
123/235
ZOOLOGY
(POST RELATED)
Subject Code: 591
Total Marks-200
Part-I
Marks-100
Animal Biodiversity:
(a) Concept of biodiversity.
(b) Classification of major phyla up to classes with diagnostic characteristics and examples.
(c) Morphology, biology and life-history of Entamoeba, Paramecium and Eimeria.
(d) Canal systems and affinities of Porifera.
(e) Morphology, reproduction and life-history of Obelia. Polymorphism and coral reefs in Cnidaria.
(f) Life-history and parasitic adaptations of Fasciola hepatica, and Taenia solium and Ascaris,
Epidemiology and Control measures.
(g) Mode of life and reproduction of Nereis and Hirudo; Vermicomposting.
(h) Mouth parts of insects, Respiration, Exceretion and Metamphosis in insects.
(i) Biology, mode of life and reproduction of Pila and Sepia. Structure and formation of shell in Mollusca,
Economic importance of mollusca.
(j) Morphology and reproduction of Astropecton, Echinus and Cucumaria. Water vascular systems in
Echinodermata.
(k) Morphology and mode of life of Ascidia, Branchiostoma, Petromyzon and Myxine. Metamorphosis in
Ascidia. Affinities of Ascidia.
(l) Morphology, digestive and respiratory system of Scoliodon and Labeo rohita. Types of Scales and fins
in Pisces.
(m) Mode of life, reproduction and parental care in Amphibians. Economic importance of toad and frogs.
(n) Venomous Snakes and Snake bites, Morphology, habit and habitats of crocodiles and alligators.
Dinosaurs.
(o) Flight adaptation, Migration of birds, Flightless birds.
(p) Egg laying mammals and marsupials; aquatic mammals.