What is the evolutionary ancestor of protozoans?
What is the evolutionary ancestor of protozoans?
Consists mostly of photosynthetic algae; evolved from a heterotrophic ancestor that acquired a plastid via primary endosymbiosis of a cyanobacterium; this ancestor may be common to all groups within Archaeplastida, or multiple endosymbiotic events may have occurred.
Are protists the ancestors of what other kingdoms?
Some protists are considered the ancestors of multicellular plants, animals, and fungi. The term was first suggested in 1866 by Ernst Haeckel.
Do protists share a common ancestor?
While it is likely that protists share a common ancestor (the last eukaryotic common ancestor), the exclusion of other eukaryotes means that protists do not form a natural group, or clade.
What are protists most closely related to?
We now know that many protists are more closely related to plants, animals or fungi than they are to each other. If plants, animals and fungi are each considered unique Kingdoms of life then the protists could arguably be separated into more than 20 different Kingdoms.
Which group includes all of the protists?
Kingdom Protista includes all eukaryotes that are not animals, plants, or fungi. Kingdom Protista is very diverse. It consists of both single-celled and multicellular organisms.
Which protist group does the common ancestor of the phylum Plantae most likely belong to?
Archaeplastida. Red algae and green algae are included in the supergroup Archaeplastida. It was from a common ancestor of these protists that the land plants evolved, since their closest relatives are found in this group.
Which lineage of protist is believed to most closely resemble early plant ancestors?
The charophytes are the closest living relatives to land plants and resemble them in morphology and reproductive strategies. Charophytes are common in wet habitats, and their presence often signals a healthy ecosystem.
Are fungi and protists closely related?
Both fungi and protists are eukaryotic. Their morphology, energetic mode (chemotrophic versus phototrophic), and formal classification (taxonomic versus phylogenetic) are incomplete. Fungi are phylogenetically related, and classified into the kingdom Fungi.
