What are some characteristics of organisms in the Archaezoa phylum?

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Presentation transcript:

What are some characteristics of organisms in the Archaezoa phylum?

Motile by flagella Lack mitochondria

What are two pathogenic organisms that belong to the Archaezoa phyla?

Trichomonas vaginalis Giardia lamblia

What is the causative agent of amoebic dystentery?

Entamoeba histolytica

What are some characteristics of organisms in the Apicomplexa phylum?

Obligate intracellular parasites Non-motile in mature form Complex life cycle usually involving multiple hosts

What are three pathogens that belong to the Apicomplex phylum?

Plasmodium species Cryptosporidium Toxoplasma gondii

What disease is caused by Plasmodium?

Malaria

Define definitive host for a protozoan.

Host where sexual reproductive cycle takes place

What is the definitive host for Plasmodium?

Anopheles mosquito

What phylum does Trypanosoma brucei belong to?

Euglenozoa It is a hemoflagellate

What type of organism has a scolex and proglottids?

Platyhelminth – the cestodes or tapeworms

What type of organism is Trichinella spiralis?

Roundworm or nematode