Protists live in lakes, rivers, oceans, ponds and wet sediments. Since they are microscopic organisms, they can live in just about any part of the world that has traces of water to support their life.Know More
Some of the most common groups of protists that can be found in rivers, lakes, oceans and other water bodies are:
Flagellates: They are the smallest in size when compared to other protists. They move by the use of flagella which propel them to wherever they wish to go.
Ciliates: Ciliates move by the use of fine hair-like features that are normally referred to as cilia. The cilia make them good swimmers, despite being the largest of the various groups of protists.
Sporozoa: These protists cannot move on their own since they do not have any features for movement. Sporozoa are generally parasitic in nature and thus rely on their hosts to move. They are likely to cling to animals like turtles and fish.
Heliozoans: Heliozoans are known to live in fresh water bodies like lakes rather than oceans. They are characterized by a lack of skeleton and stiff amoeboid pseudopods.
Other protists include amoebas and radiolarians.Learn more about Biology
The roles of protists include producing and using energy, recycling living systems into constituent nutrients, acting as biological control agents, synthesizing oxygen, and engaging in symbiotic relationships. Protists have commercial roles in the pharmacological, agricultural and biomedical research industries.Full Answer >
Protists are a diverse group of organisms, and they reproduce in a number of different ways, including asexual binary fission, multiple fission, fragmentation and several forms of sexual reproduction. Many protists can reproduce either sexually or asexually depending on environmental conditions.Full Answer >
The types of protists, which are eukaryotes, that aren't animals, fungi or plants include euglenoza, alevolates, stramenopiles, red algae, slime molds and choanoflagellates. The alevolate group includes ciliates, sporozoans and dinoflagellates. The stramenopile group includes diatoms, golden algae, green algae and water molds.Full Answer >
Some harmful protists include plasmodium, gregarines, haemosporidia and coccidians. Others include babesia, toxoplasma, adeleorina and some forms of amoeba. Some of these protists are parasites on invertebrates such as gastropods while others are parasites on vertebrates such as humans.Full Answer >