Measures of Disease Frequency ï° Incidence (I): Measures new cases of a disease that develop over a period of time. ï° Dictionary: âThe number of new health-related events in a defined population within a specified period of time.
Protists were traditionally subdivided into several groups based on similarities to the higher kingdoms: the unicellular animal-like protozoa, the plant-like protophyta (mostly unicellular algae), and the fungus-like slime molds and water molds.mong the pioneers in the study of the protists, which were almost ignored by Linnaeus except for some algae, were Leeuwenhoek, O. F. Mueller, MÃ¼ller. C. G ehrenberg And Felix. FÃ©lix dujardin the first groups used to classify microscopic organism Were the animalcules And. the infusoria
1 1. MAJORGROUPS:PROTISTâSDomain: Eukarya Kingdom:Protista. 2  2. 3  Chromalveolataï¨ To determine if a protist species is a part of this phylum is based on two pieces of confirmation. 4  First of all, some of the DNA sequence data propose that this phylum forms a monophyletic group. Stramenopiles main characteristic is the flagellum that each protist has. 2  In most protists in this phylum, the hairy flagellum is paired with a short smooth flagellum. o Diatoms: Diatoms are unicellular and are producers of the food chain. 3  These organisms have a cell wall that is made of silica.