Protists Flashcards
1
Q
Serial endosymbiosis
A
Chloroplasts of red algae, green algae, and plants probably arose in a single primary endosymbiotic event in which a cyanobacterium was incorporated into a cell. Multiple secondary endosymbioses led to chloroplasts in euglenoids, dinoflagellates, diatoms, etc.
2
Q
Protists
A
They obtain their nutrients autotrophically or heterotrophically. They are free-living or symbiotic, ranging from mutualism to parasitism. Most of them live in the ocean or in freshwater ponds, lakes and streams.
Green, red and brown algae are examples of protists.
