T.U. B.Sc. 1st Year Zoology (Non-Chordata, Protochordata) Syllabus (Nepal)

T.U. B.Sc. 1st Year Zoology (Non-Chordata and Protochordata) Syllabus and Notes Link

Group A: Lower Non-Chordata

Taxonomy: Concept, trends and significance of taxonomy. Concept of Protozoa and Metazoa and the origin of Metazoa. Classification of Protozoa, Porifera, Coelenterata, Platyhelminthes, Aschelminthes and Annelida up to orders with characters and examples. (10 lec.)

Protozoa: Habit, habitat, structure and reproduction of Vorticella. Structure, life cycle, pathogenicity and control measures of Leishmania donovani, Giardia lamblia, Entamoeba histolytica, Trichomonas vaginalis, Eimeria tenella and Babesia bigemina. (14 lec.)

Porifera: Habit, habitat, structure, reproduction and embryogeny of Scypha. Introduction and examples of freshwater sponges. Canal and skeletal systems. Economic importance of Porifera. (7 lec.)

Coelenterata: Habit, habitat, structure, reproduction and development of Obelia. Polymorphism. Distribution, types and formation of corals and coral reefs. Coral and dinoflagellate symbiosis and coral bleaching. Human intrusion in coral reefs. Economic importance of Coelenterates. (12 lec.)

Platyhelminthes: Structure, life cycle, pathogenicity and control measures of Fasciola hepatica, Schistosoma haematobium, Taenia solium and Echinococcus granulosus. Morphological and physiological adaptations of helminth parasites. (12 lec.)

Aschelminthes: Structure, life cycle, pathogenicity and control measures of Ascaris lumbricoides, Ancylostoma duodenale, Enterobius vermicularis, Wuchereria bancrofti and phyto-nematode (Meloidogyne incognita). Economic importance of Aschelminthes. (10 lec.)

Annelida: Coelom and Nephridia in Annelida. Structure, organ systems, life cycle and parasitic adaptations of Hirudinaria granulosa. Introduction to vermicomposting. Economic importance of annelids. (10 lec.)

Group B: Higher Non-Chordata and Protochordata

Taxonomy: Classification of Arthropoda, Mollusca, Echinodermata and Protochordata up to orders with characters and examples. (6 lec.)

Arthropoda: General morphology and economic importance of spiders, mites and ticks. Organ systems of freshwater prawn (Palaeomon). Structure, life history and economic importance of Periplaneta americana, Phlebotomus argentipus, Culex quinquefasciatus, Aedes aegypti and Sitophilus oryzae. Mouthparts of insects. Metamorphism in insects. Social behavior of termites. Economic importance of Arthropods. ( 25 lec.)

Mollusca: Shells in Mollusca. Structure and organ systems of Apple Snail (Pila globosa), fresh water mussel: Lamellidens (=Unio). Pearl and its formation. Dispersal, damage and control measures of African Giant Land Snail (Lissachatina fulica). Torsion and detorsion in Gastropoda. Economic importance of molluscs. (22 lec.)

Echinodermata: Structure, organ systems and development of Asterias. Larval forms in Echinodermata. (8 lec.)

Protochordata: Structure, organ systems and affinities of Balanoglossus, Herdmania and Branchiostoma. Development of Herdmania. (14 lec.)

About Author

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Sagar Aryal, PhD

Dr. Sagar Aryal is a microbiologist, researcher, and science communicator from Nepal. He is also co-founder and Research Head of the Department of Natural Products at the Kathmandu Research Institute for Biological Sciences (KRIBS), where he leads research on natural product discovery and microbial biodiversity. Dr. Aryal earned his Ph.D. in Microbiology from Tribhuvan University, Kathmandu, Nepal, in 2025, supported by a DAAD Research Grant and a University Grants Commission (UGC) Nepal Ph.D. Fellowship. His research interests include Actinomycetes, Myxobacteria, microbial taxonomy, and natural products, particularly the discovery of bioactive compounds with potential pharmaceutical applications. He isolated and identified Nocardia nepalensis, a novel bacterial species from Nepal, contributing to understanding microbial diversity in the region. Dr. Aryal has published more than 16 research articles in international journals and contributed three book chapters to established academic publications. He has presented scientific research findings and developed international research collaborations through visits to more than 18 countries across Asia, Europe, North America, and Oceania. From 2023 to 2025, he served as the American Society for Microbiology (ASM) Young Ambassador to Nepal. Since December 2025, he has served as an Editorial Board Member of Scientific Reports, a Nature Portfolio journal. In recognition of his scientific contributions, Dr. Aryal received the NAST Science and Technology Youth Award 2025 from the Nepal Academy of Science and Technology. He previously received the Frs. Locke and Stiller Research Award (LSRA) for the 2017-2018 cycle from St. Xavier's College, Kathmandu, and a Nepal Academy of Science and Technology (NAST) Research Grant for 2017-2018. Alongside his scientific career, Dr. Aryal has more than 15 years of experience in blogging, content writing, and search engine optimization (SEO).