"Protists" and the origins of
Animalia

History of Ideas about Major Divisions of Life

Eucarya (Woese et al. 1990)

Eucarya (Woese et al. 1990)

The Emergence of Eukaryotes: "Protists" as ancestors

Origin of eukaryotes

 

"Protists" are a grade

Why "protists" are important

General "Protist" Characteristics

General "Protist" Locomotion

General "Protist" Locomotion

General "Protist" Feeding

General "Protist" Feeding

General "Protist" Reproduction

General "Protist" Reproduction

General "Protist" Reproduction

We'll consider three Phyla

Phylum Sarcomastigophora

Subphylum Mastigophora

Class Phytomastigophora

Class Zoomastigophora

Subphylum Sarcodina

Subphylum Sarcodina

Phylum Ciliophora

Ciliophoran trends

Phylum Apicomplexa

Phylum Apicomplexa

Phylum Apicomplexa

Class Sporozoa

Plasmodium - malaria

Plasmodium - malaria

 

 

Origin of animals - Two theories

Syncytial Theory

Syncytial Theory

Syncytial Theory

Colonial Theory

Colonial Theory

Support for Colonial Theory

Choanoflagellates and Choanocytes