Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[Q]: Filter feeders called rotifers collect digestive and excretory wastes in cloacal bladder primitive organ.
[A]: Filter feeders called rotifers collect digestive and excretory wastes in what primitive organ?


[Q]: The outer layer of the sun is made up of plasma.
[A]: What is the outer layer of the sun made up of?


[Q]: If a unit is named after a person it needs to be capitalized.
[A]:
If a unit is named after a person it needs to be?