instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Darwin believed in gradualism.
answer:
Did darwin believe in punctuated equilibrium or gradualism?


question:
Protists are thought to be the oldest eukaryotes.
answer:
What is thought to be the oldest eukaryotes?


question:
Oxygen is made by trees and other plants during photosynthesis.
answer:
What is made by trees and other plants during photosynthesis?