Protozoa
Protozoa are single-celled eukaryotes (organisms whose cells have nuclei) that commonly show characteristics usually associated with animals, most notably mobility and heterotrophy. Most protozoans are too small to be seen with the naked eye - most are around 0.01-0.05 mm, although forms up to 0.5 mm are still fairly common - but can easily be found under a microscope. They are able to multiply in humans, which contributes to their survival and also permits serious infections to develop from just a single organism. Protozoa that live in the blood or tissue of humans are transmitted to other humans by an arthropod vector (for example, through the bite of a mosquito or sand fly).
Different Types of Protozoa:
Different Types of Protozoa:
- Sarcodina
- Mastigophora
- Ciliophora
- Sporozoa