Diversity of Animals Invertebrates (ZOOL-5101) BS Chemistry 1st Reg + SS

BS Chemistry Reg+ SS

An invertebrate is any animal without an internal backbone which includes animals such as insects, crustaceans, worms, jellyfish and sponges. The diversity of invertebrate species far outnumbers that of the vertebrate animals. ... The remaining invertebrates constitute between 12-15% of all animal species. The Invertebrates unit explores six groups of invertebrates --- poriferans (sponges), cnidarians (such as sea jellies and corals), echinoderms (such as sea urchins and sea stars), mollusks (such as octopuses, snails, and clams), annelids (worms), and arthropods (such as insects, spiders, and lobsters). They are multicellular. All the cells have different responsibilities in keeping the animal alive. They have no cell walls, like all other animals. They reproduce by two reproductive cells, or gametes, coming together to produce a new organism of their species.

ZOOM Meeting ID: 599 898 0985 (http://us05web.zoom.us/j/2624056343?pwd=a2lyT2JnM1JIMjliK1ZOajlxY2xoZz09)

Assessment methods

(Traditional method)

Sessional

Presentations & assignment 20

Practicals: 20

Mid Term Exam: 20

Final exam: 40

Online Exam:

Sessional 20

Mid Term 30

Final Term 50

Course Work Plan and evaluation criteria for BS Chemistry 1st Semester

Subject: Diversity of animal (invertebrates) Credit hours: 4 (3+1)

Course code: ZOOL-5101

	Course description
Week 1	Invertebrates introduction; classification of organism; evolutionary relationship and tree diagram; pattern of organization
Week 2	Animal like protest: The protozoa, life within a single plasma membrane; evolutionary perspective, maintenance function, symbiotic relationship
Week 3	Protozoans taxonomy (phyla, sub phyla, super classes) locomotion, cilia and pellicle structures, reproduction; further phylogenetic consideration
Week 4	Multicellular and Tissue Levels of Organization: origins of multicellularity; animal origins. Phylum porifera: cell types, body wall, and skeletons; water currents and body forms; maintenance functions; reproduction..
Week 5	Phylum Cnidarian (coelenterate) the body wall and nematocysts; alternation of generations; maintenance functions; reproduction and classification up to class. Phylum Ctenophora; further phylogenetic considerations
Week 6	Triploblastic and Acoelomate Body Plan: Phylum Platyhelminthes: classification up to class; the free-living flatworms and the tapeworms; Phylum Nemertea; Phylum Gastrotricha; further phylogenetic considerations
Week 7	Pseudocoelomate Body Plan: Aschelminths: general characteristics; classification up to phyla with external features; feeding and the digestive system; Phylum Rotifera and Phylum Nematoda; Phylum Kinorhyncha organ systems; reproduction and development. Some important nematode parasites of humans; further phylogenetic considerations.
Week 8	Midterm
Week 9	Mollusca Success: relationships to other animals; origin of the coelom; molluscan characteristics; classification up to class. The characteristics of shell and associated structures, feeding, digestion,
Week 10	Gas exchange, locomotion, reproduction and development, other maintenance functions and diversity in gastropods, bivalves and cephalopods; further phylogenetic considerations.
Week 11	Annelida: The Metameric Body Form: relationship to other animals, metamerism and tagmatization; External structure and locomotion, feeding and the digestive system, gas exchange and circulation, nervous and sensory functions, excretion,
Week 12	Regeneration, reproduction and development in different classes of annelids ; further phylogenetic considerations.
Week 13	Arthropods: Blueprint for Success: classification and relationships to other animals; metamerism and tagmatization; the exoskeleton;
Week 14	Metamorphosis; Classification up \ to class; further phylogenetic considerations; phylogeny and adaptive diversification.
Week 15	Assignment+ presentation+ Quiz(5+5+10) Study of representative Phyla, Permanent slide preparations and Lab manual
Week 16	Final term