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 scientific process of collecting data outside the lab (in the "wild") is known as field work kind of work.
[A]: The scientific process of collecting data outside the lab (in the "wild") is known as what kind of work?


[Q]: A consumer and producer in a food chain are involved when a deer eats a leaf.
[A]:
Which of the following events involves a consumer and producer in a food chain?