Plakortis simplex



Plakortis simplex belongs to the phylum Porifera; therefore it is a filter feeder (also known as a suspension feeder).  This means that it feeds by filtering floating matter and food particles from water, by passing the water over a specialized filtering structure.  The food sources that are taken in are primarily bacteria and other small organisms.  The water is circulated through a large central canal known as the atrium.  This is accomplished by means of the choanocytes which are single flagellated cells which are believed to have given rise to the sponges.  Water moves through the pores also known as ostia in the walls of the sponge.  Nutrients are then taken in by different types of cells such as amoebocytes which dispense the nutrients throughout the rest of the body. 


For reproduction information on P. simplex click here.