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.
1. Protozoa are unicellular eukaryotic microorganisms lacking a cell wall and belonging to the Kingdom Protista. 2. Protozoa reproduce asexually by fission, schizogony, or budding. Some protozoa can also reproduce sexually. 3. Relatively few protozoa cause disease. 4.The vegetative, reproducing, feeding form of a protozoan is called a trophozoite. 5. Under certain conditions, some protozoa produce a protective form called a cyst. 6. Components of protozoa that function as PAMPs include GPI-anchored proteins and mannose-rich glycans.ome protozoa also reproduce sexually by fusion of gametes (see Fig. 1) . The vegetative, reproducing, feeding form of a protozoan is called a trophozoite. Under certain conditions, some protozoa produce a protective form called a cyst that enable them to survive harsh environments.