If you do have room for a small table (even if one side is up against a wall), there's not necessarily a need to have all the seating siting around it at once all the time, taking up needed space.
A hollow cell in the excretory system of certain invertebrates, including flatworms and rotifers, containing a tuft of rapidly beating cilia that serve to propel waste products into excretory tubules.lame cell. n. 1. (Zoology) an organ of excretion in flatworms: a hollow cup-shaped cell containing a bunch of cilia, whose movement draws in waste products and wafts them to the outside through a connecting tubule.
When it is in the hollow cell, the hollow cell takes the food and propels it into little tubes, which are lined with flame cells. These flame cells contain small cilia, these cilia pushes the waste from the flame cells to tubules that excrete the waste from the proglottids. This is called Protonephridia.