Protozoa are single-celled eukaryotes (organisms whose cells have nuclei) that commonly show characteristics usually associated with animals, most notably mobility and heterotrophy. They are often grouped in the kingdom Protista together with the plant-like algae and fungus-like water molds and slime molds. Are protozoa multicellular eukaryotes? Protists. Protists are unicellularRead More →
Protozoans are called early animals because they are regarded as ancestors of all multicellular eukaryotic organisms. … Phylogenetically the protista kingdom acts as a connecting link between the prokaryotic kingdom Monera on one hand and the complex multicellular kingdoms of fungi, plants and animals on the other hand. What areRead More →
They are heterotrophic and feed on other microorganisms or on organic particles. … In this process, the particle is sucked into an invagination in the cell membrane, which then folds in on itself and pinches off from the cell membrane to become a smaller vacuole. Protozoa are highly motile. DoRead More →
1.1. Malaria. Malaria is the most significant of the protozoan parasites that infect man. … 1.2. African trypanosomiasis. … 1.3. Chagas disease. … 1.4. Leishmaniasis. … 1.5. Toxoplasmosis. … 1.6. Cryptosporidiosis. Which one of the following is protozoan disease? So, the correct answer is, ‘ Malaria. ‘ What are 3Read More →
Their shells are made out of silica (radiolaria (a, 350µm) and diatoms (b, 50µm); or out of calcium carbonate (foraminifera (c, 400µm) and coccoliths (d, 15µm). What are the tests of radiolarians made out of? Usually composed of silica, the test is elaborately perforated in a variety of patterns, formingRead More →