Animal Like Protists

Phylum Sarcomastigophora

Phylum Apicompleza

Phylum Ciliophora

Protists

• Over 38,000 species of protists! • Members of the original life forms on earth!

About 1.5 billion years ago! • Some protists are plant like, some are animal

like – Protozoa: animal like protists

• Many have symbiotic relationships: – Parasitism

• Scientists who study only protists: protozoologists

Protozoa

• Protozoa – Unicellular, plasmic organization – BUT THAT DOES NOT MEAN THEY ARE

SIMPLE – Individuals or colonies

Describe the characteristics of the species:

Actinospharium

Difficult?

• What if you used taxonomy? – Domain: Eukarya – Kingdom: Protista – Phylum: Sarcomastifophora – Class: zoomastigophorea– Subphylum: Pseudopodia

• TAXONOMY GIVES US CLUES! • USE IT!

Phylum Sarcomastigophors

• Largest protozoan phylum. • All protozoa in this phylum:

– Unicellular or colonial – Locomotion by flagella, pseudopodia, or

both – Autotrophic, saprozoic, heterotrophic – Single type of nucleus – Sexual or asexual reproduction

Euglena

• Class Phytomastigophorea – Possess chlorophyll, 1 or 2 flagella

Euglena

• Salt or fresh water • Can perform

photosynthesis or absorb nutrients – The stigma at the base

of the flagella allows the euglena to orient themselves towards a light source

• Reproduce using binary fission– Split into two new

organisms

Euglena Structure