Respuesta :
Answer: The adult stage for one-celled organisms is usually extremely long.
Explanation:
The first one is false, I'm no expert, but I'm pretty sure that there is some yeast that don't produce spores, even in normal conditions.
The third is false, Algae can be unicellular and multicellular.
The fourth is false, All the Algae in the world is close to half of the ogygen in the world.
So that leaves the second, The adult stage is usually long for one-celled organisms.
Answer:
hey hey! the answer is under normal conditions yeast produces spores i think, im gonna do the quiz and check and ill let you know if it was wrong or right but im right...