Patrick Bylis and Augustine Caoile
The Excretory System
What Is It?
Archaea
Bacteria
Eukarya
Protist
Fungi
Plant
Animalia
>
Porifera
Cnidarians
Platyhelminthes
Nemotoda
Mollusca
Annelids
Arthropoda
Echinodermata
Chordata
>
Fish
Amphibians
Amniotes
>
Birds
Mammals
Protist
Karenia Brevis
As a protist, Karenia Brevis does not have specific cell structures dedicated to excretion. Instead, the cell's waste are excreted directly through the cell membrane through diffusion.