instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Plasmodesmata connect to cytoplasms in the plant cell.
answer:
What do plasmodesmata connect to in the plant cell?


question:
You call the hard case that surrounds the soft parts of some animals the exoskeleton.
answer:
What do you call the hard case that surrounds the soft parts of some animals?


question:
Earth revolves around the sun once per year of the following happens in our solar system.
answer:

Which of the following happens in our solar system?