Don't hold to me to this answer, but i am fairly positive it is because they vary in there function and structure more then any other group of organism. They are metabolically and reproductively diverse among themselves.
Protists are the most diverse of eukaryotes because they cover all basis of life forms. They are unicellular, multicellular, autotrophic, heterotrophic, use asexual and sexual reproduction, sessile, and monbile. They are said to be paraphyletic because they have so many different characteristics they evolved from different ancestors.
The Protist Kingdom is very diverse because it encompasses a variety of eukaryotic microorganisms. Their only commonality is simple cellular organization. The only requirement for this Kingdom is to be unicellular or multicellular with no specialized tissues.
Because it is known as the "odds and ends" drawer. In other words, when scientists have just discovered an organism, that have to put it in a specific kingdom. But if the organism does not belong in any particular kingdom, they put it in kingdom Protista. So, all of the organisms in Protista don't exactly have a whole lot in common.
It gave rise to animals, fungi and plants. It also took in anything that wasn't a plant or animal.
Their genetic material is contained within a double walled membrane and they posses many membrane organelles.
They have organized nuclei. So they are eukaryotic.
The most diverse kingdom is likely Animalia.
Kingdom Protista consists mostly of single-celled and simple multicelluular organisms.
The word Kingdom encompasses all animals...can't get more diverse than everything.
The first eukaryotes are most likely to belong to the Protista kingdom. These are mostly multicellular organisms with the earlier ones including organisms like Kneallhazia solenopsae and many more.
Protista I would think.
The most diverse kingdom is likely Animalia.
Kingdom Protista consists mostly of single-celled and simple multicelluular organisms.
The word Kingdom encompasses all animals...can't get more diverse than everything.
protista
Protista
The first eukaryotes are most likely to belong to the Protista kingdom. These are mostly multicellular organisms with the earlier ones including organisms like Kneallhazia solenopsae and many more.
Protista I would think.
The kingdom Protista I think
Some are, most aren't.
This organism likely belongs in the Protista kingdom.
No, the 'Kingdom' Protista is not a clade or monophyletic group at all, most likely. It could be that it should be divided into about 60 separate kingdoms. 'Protista' was used as a catch-all for unclassifyable groups. This surely does not reflect reality and work is under way to properly classify the algae and protista that swarm in this improper group called Protista.
Most of the things living on this planet are invertebrates, so getting to know a little about them is a good idea. Invertebrates are members of the Kingdom Animalia, they are linked together by the fact that they have no backbone or vertebrae. They do not include the Protozoa who are generally considered to be part of the Kingdom Protista.