Protist
From Simple English Wikipedia, the free encyclopedia
Protists are single celled organisms that can be extremely small. Some of them can be called parasites, which leech off other organisms to survive. Not all protists are parasites.
An example of a single celled organism in the protist kingdom is the Paramecia. The Paramecia moves using its small, hair-like fibers called cilia, and eat using the cilia to sweep the food into its food vacuole. Some paramecia can be viruses, some carried and implanted by mosquitos. An example of a virus-carrying mosquito is the tsetse fly, known to cause sleeping sickness in Africa. The tsetse fly sucks a person's blood, and inside the blood the gametes form with the egg in the "guts" to make a zygote. Soon the zygote makes many clones of itself using asexual reproduction, and then they burst out and move into the salivary glands to be injected into another person (or 'host').
