kingdom animalia. general characteristics multicellular –complex body plans –diverse forms...
TRANSCRIPT
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
