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The cyst wall of some ciliated protists is composed of four layers, ectocyst, mesocyst, endocyst, and the granular layer. The ectocyst is the outer layer and contains a plug-like structure through which the vegetative cell reemerges during excystation. Interior to the ectocyst, the thick mesocyst is compact yet stratified in density.
Ambiguity effect; Assembly bonus effect; Audience effect; Baader–Meinhof effect; Barnum effect; Bezold effect; Birthday-number effect; Boomerang effect; Bouba/kiki effect
Parasitology is the study of parasites, their hosts, and the relationship between them. As a biological discipline , the scope of parasitology is not determined by the organism or environment in question but by their way of life.
Examples can be found in bacteria, protozoa, viruses, and animals. Parasites may also alter the host behavior to increase protection of the parasites or their offspring; the term bodyguard manipulation is used for such mechanisms. [5] Among the behavioral changes caused by parasites is carelessness, making their hosts easier prey.
Additionally, several conditions linked to faulty dopamine transporters can also lead to secondary delusional parasitosis. Examples of such conditions include: "schizophrenia, depression, traumatic brain injury, alcoholism, Parkinson's and Huntington's diseases, human immunodeficiency virus infection, and iron deficiency". [8]
Quantitative parasitology deals with measures to quantify parasite loads in samples of hosts and to make statistical comparisons of parasitism across host samples. In evolutionary biology, parasite load has important implications for sexual selection and the evolution of sex, as well as openness to experience. [1] High parasite load.
Chilomastix is a genus of pyriform excavates within the family Retortamonadidae [1] All species within this genus are flagellated, structured with three flagella pointing anteriorly and a fourth contained within the feeding groove. [1]
A sporozoite (ancient Greek sporos, seed + zōon, animal) is the cell form that infects new hosts.In Plasmodium, for instance, the sporozoites are cells that develop in the mosquito's salivary glands, leave the mosquito during a blood meal, and enter liver cells (hepatocytes), where they multiply.