·         Classification of Animals                    Video -3

·     Some Important Terms                                                               

Ø  Acoelomates – Body cavity or coelom is absent. eg- Platworm. (Porifera, Coelentrates, Platyhelminthes).

Ø  Pseudocoelomates – Body cavity is false coelom. eg- Round worm (Aschelminthes).

Ø  Eucoelomata- Body cavity is true coelom eg- Earthworm. 

·         Schizocoelomata – Annelida, Arthopoda, Mollusca. 

·         Enterocoelomata – Echinodermata, Chordata.

Ø  Protostomia – Blastopore of gastrula become the Mouth of the adults.  eg- Annelida, Arthropoda, Mollusca.

Ø  Deuterostomia - Blastopore of gastrula become the Anus of the adults. eg- Echinodermata, Chordata.

Ø  Some Important Books and Author.

·         Aristotle –                           Historia Animalium.
·         Theophrastus –                  Historia Plantarum.
·         Carolus Linnaeus –           Philosophic Botanica, 
                                                    Species Plantarum, 
                                                    Systema Naturae.
·         Lamarck -                          Philosophic Zoologique.
·         Charles Darwin –             Origin of Species.
·         Robert Hooke -                 Micrographia
·         Benthem and Hooker –    Genera Plantarum