Kingdom Animalia

General characteristics• Multicellular

– Complex body plans– Diverse forms (invertebrates & vertebrates)

• Heterotrophic– Herbivores– Carnivores– Detritovores

• Movement (muscle & nervous tissue)• Sexual reproduction• Embryonic division• Unique tissues (except sponges)

Cellular --> Cell-Tissue --> Tissue-Organ--> Organ-system

Porifera Cnidaria Platyhelminthes Chordata Grantia Metridium Dugesia Perca

Parazoa Radiata Bilateria Bilateria

Organization in Organismal complexity

Body symmetry

Parazoa Radiata Bilateria- Asymmetric- No defined tissue/ organs- Cells agregate & differentiate- Cells disagregate & dedifferentiate

- Cnidaria- Central axis

- Platyhelminthes -->Chordata- Right & left halves- Top & bottom- Better movement than Radiata- Cephalization

Development of body cavities

Pseudocoel

Coelom

EndodermMesodermEctoderm

Cellular --> Cell-Tissue -->Tissue-Organ--> Organ-system

Parazoa Radiata Bilateria Bilateria

Diploblastic Triploblastic- Endoderm - Endoderm- Ectoderm - Mesoderm - Ectoderm

PROTOSTOMES

Bilateria Development

Zygote --> Blastula --> Blastopore --> Archenteron

Spiral

Mouth Mouth

Anus

CoelomMesoderm

Gut

- Platyhelminthes- Nematoda- Mollusca- Annelida- Arthropoda

Determinate

DEUTEROSTOMES

Zygote --> Blastula --> Blastopore --> Archenteron

Radial

- Echinodermata- Chordata

Anus Gut

Mesoderm Mouth

Anus

Coelom

Body axes charades