phylum: protozoa phylum: porifera phylum: cnidaria
TRANSCRIPT
Phylum: Protozoa
Phylum: Porifera
Phylum: Cnidaria
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.
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 Plasmodium Paramoecium Amoeba
Flagellata sporozoa Ciliata Rhizopoda
Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry.
An Illustration for the students who aspire for medical studies.
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
Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry.
An Illustration for the students who aspire for medical studies.
Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry.
An Illustration for the students who aspire for medical studies.
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.
Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry.
An Illustration for the students who aspire for medical studies.
Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry.
An Illustration for the students who aspire for medical studies.
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..
Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry.
An Illustration for the students who aspire for medical studies.
HYDROZOA SCYPHOZOA ANTHOZOA
HYDRA AURELIA SEA ANEMONE
Medusa form is permanent Remain as polypsPolyp body is dominant & medusa is reduced
Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry.
An Illustration for the students who aspire for medical studies.
Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry.
An Illustration for the students who aspire for medical studies.
Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry.
An Illustration for the students who aspire for medical studies.
Prepared by T. Madhavan & K. Chandrasekaran, Lecturers in Zoology, Directorate of School Education., Pondicherry.
An Illustration for the students who aspire for medical studies.
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