1. Phylum: Protozoa Phylum: Porifera Phylum: Cnidaria

2. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies. Single celled organism Locomotion is effected by pseudopodia, cilia,flagellum. Nutrition is autotrophic or heterotrophic. Reproduction – Asexual method or sexual method.

3. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies. Euglena PlasmodiumParamoecium Amoeba FlagellatasporozoaCiliataRhizopoda

4. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies.

5. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies. PARAMOECIUM

6. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies.

7. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies.

8. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies. They are multicellular,aquatic organism. Presence of canal system. ostia – spongocoel – osculam. The body wall contain spicules. Reproduction – Both asexual and sexual method. Example : sponges.

9. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies.

10. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies.

11. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies. All animals are marine except Hydra. The body is radially symmetrical. The body wall contain two layers – Ectoderm and Endoderm. Inbetween ectoderm and endoderm, there is a mesoglea. Diploblastic animals..Many coelenterate exhibit polymorphism. Example : obelia colony Presence of Nematocyst – Cells of defence – tentacle – When triggered,poison is penetrated in to the prey. Reproduce both asexually and sexually method..

12. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies. HYDROZOASCYPHOZOAANTHOZOA HYDRAAURELIASEA ANEMONE Medusa form is permanentRemain as polyps Polyp body is dominant & medusa is reduced

13. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies.

14. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies.

15. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies.

16. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies.

17. Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry. An Illustration for the students who aspire for medical studies. End