What are the supergroups?
The majority view at present is to order all eukaryotes into six supergroups: Excavata, Chromalveolata, Rhizaria, Archaeplastida, Amoebozoa, and Opisthokonta. The goal of this classification scheme is to create clusters of species that all are derived from a common ancestor.
What is the difference between dinoflagellates and Zooflagellates?
Flagellates are commonly identified by whether they have chloroplasts or do not have chloroplasts. Flagellates with chloroplasts are commonly called phytoflagellates, and flagellates without chloroplasts are called zooflagellates. Some of the better known and numerous free-living flagellates are the dinoflagellates.
Are dinoflagellates flagellates?
The dinoflagellates (Fig. 2.3 A”C) form a very large and unique group, which is probably more important in marine than freshwater environments. Their unique arrangement of flagella, one spiraling around the cell in a groove (girdle) and a second distally directed in another groove (sulcus), makes them distinctive.
What are the four supergroups of protists?
One current classification separates all eukaryotes into five supergroups: Excavata, Chromalveolata, Rhizaria, Archaeplastida and Unikonta. Along with different groups of protists, animals and fungi are placed into the supergroup unikonta and plants are found in archaeplastida.
What are the 4 supergroups of eukarya?
Biogeography ” This is the clade that includes some of the most important photosynthetic organisms on the planet. It also includes several clades of heterotrophs. The Stramenopiles include four different clades: 1) the Diatoms, 2) the Golden Algae, 3) the Brown Algae and 4) the Oomycetes (Water Molds).
Where can we find protists?
Most protists can be found in moist and wet areas. They can also be found in tree trunks and other organisms.
Can protists be found in soil?
Protists can be found in all kinds of places, but Geisen focuses specifically on the soil, where they play a pivotal role. “Many protists are predators that feed on bacteria and fungi. Protists are key indicators.
How do protist reproduce?
Protists can reproduce asexually through binary fission, one nucleus divides; multiple fission, many nuclei divide; and budding. They can, however, also reproduce by sexual reproduction. Protists reproduce sexually through the processes of conjugation and alternation of generations.
Which role of protists has the most positive effect?
Answer: Protists decompose dead materials, returning nutrients to the soil.
What are examples of animal like protists?
Examples of Animal-like Protists
Is protist a plant or animal?
A protist (/ˈproʊtɪst/) is any eukaryotic organism (that is, an organism whose cells contain a cell nucleus) that is not an animal, plant, or fungus.
What is another name for plant-like protists?
algae
Are protozoans considered animals?
Most protozoa consist of a single cell. They are animal-like because they are heterotrophs, and are capable of moving. Although protozoa are not animals, they are thought to be the ancestors of animals.
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