Debate and discussion of any biological questions not pertaining to a particular topic.
What is protoctists? The meaning is not in the dictionary..the word came up as i was going through the plant life cycle.
"The roots of education is bitter, but the fruit is sweet" Aristotle
According to current biosistematics protoctista=protista
The eukarya kingdom is divided into 4 kingdoms: Protoctista(Protista), Fungi, Animalia and Plantae.
Prtoctists are algea, protozoars, oomycets and mixomycets
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter
The first kingdome Protista had only unicellular organisms in it(both procaryotes and eukaryotes). So when they redid the clasification, the renamed the kingdom protoctista(to avoid confusions). But in the present they are both accepted
Protoctista's are single celled organisms. They live in watery environments. Examples of protoctista's are Slime moulds, Algae, and Yeasts
Not only single cell organisms. Never make that confusion. Multicellular algae and pseudofungus is also part of the Protoctisa kingdome
Eukarya kingdom is divided into 4 subkingdoms...
Yup, since the ancestor have a nuclei membrane..
Q: Why are chemists great for solving problems?
A: They have all the solutions.
According to the latest classification, there are 6 kingdoms of living things:
- Archaebacteria (Prokaryota)
- Eubacteria (Prokaryota)
- Protoctista a.k.a Protista (Eukaryota)
- Mycota a.k.a Fungi (Eukaryota)
- Plantae (Eukaryota)
- Animalia (Eukaryota)
Protoctista is a kingdom of unicellular organisms, which live solitary, colony, or in filament shape. The members of this kingsom is animal-like, plant-like, or fungus-like. That is the idea for a suggestion that Protoctista is the ancestor of the next kingdoms: Mycota, Plantae and Animalia.
The representative species for this suggestion is Euglena sp. It has a characteristic of animal: having 'eyes' and locomotion appandage, the flagella), but it also has a characteristic of plant: having chloroplast to mean photosynthesis. When light is available, they undergo photosynthesis; whereas when there is no light, they will phagocytosis materials from their surrounding.
Sorry, my mistake: i meant the eukarya domain is divided into 4 kingdoms.
For the 3rd time i think, there are multicellular protistas: most of the Rhodophytas: Gelidium, Gracilaria, Dasya, Porphira. Multicellular Chlorophyta: Spirogyra, Cladophora, Ulva, Chara
Only a few examples
Haha... We all make mistakes... I am wrong at least once a week on this forum
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