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
Kingdom Protista contains the protists, or all the organisms that do not fit into the other kingdoms of life. Protists can be heterotrophic or autotrophic, mobile or immobile, single-celled or multi-celled, solo or a member of a colony. They are categorized into three main categories based on how they obtain nutrients.he animal-like protists are also known as protozoans, which is Latin for 'first animals.' All protozoans are single-celled heterotrophs and are categorized based on their movement. Paramecia are examples of protozoans that use cilia, or tiny hairs, to propel themselves through the water.