Answer:
1. Paramecium belongs to phyla Ciliate.
2. Schizogony is the process of asexual reproduction during which the nucleus undergoes division preceding cell division. Schizogony produces daughter cells known as merozoites, which can develop in to gametocytes or enter new host cells and undergo another cycle of schizogony.
3. Escherichia coli is one of the most frequent causesof many common bacterial infections, including cholecystitis, bacteremia, cholangitis, urinary tract infection (UTI), and traveler's diarrhea, and other clinical infections such as neonatal meningitis and pneumonia.
4. The phylum Sarcomastigophora includesmany abundant and ecologically important forms. All are either unicellular or colonial, and may be either autotrophic or heterotrophic . There are two main groups, the flagellates (subphylumMastigophora ) and the amoebas (subphylum Sarcodina ).
5. Toxoplasmosis is an infection caused by a single-celled protozoan parasite called Toxoplasma gondii, which usually affects warm-blooded animals, including humans. The infection is most commonly acquired from contact with cats and their feces or with raw or undercooked meat.