This was a large multi-function room capable of seating the bulk of the population of the house. The family would sit at the head table on a raised dais, with the rest of the population arrayed in order of diminishing rank away from them. Tables in the great hall would tend to be long trestle tables with benches.
Protozoan Cyst is a defense mechanism in the Protozoan family. It takes this form according to the conditions of the host. A change in pH, a change in oxygen supplies, anything that trigers the genetic mechanism. The cyst is evacuated trough the sediment. You could say that Cyst are a defense mechanism.
Protozoa. Protozoa are microscopic, one-celled organisms that can be free-living or parasitic in nature. They are able to multiply in humans, which contributes to their survival and also permits serious infections to develop from just a single organism.rotozoa that live in the blood or tissue of humans are transmitted to other humans by an arthropod vector (for example, through the bite of a mosquito or sand fly). Entamoeba histolytica is a protozoan.