TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Respiratory acidosis is considered to be problematic because excess co2 in blood.

SOLUTION: Why is respiratory acidosis considered to be problematic?

PROBLEM: If two populations do not mate and produce fertile offspring, separate species result.

SOLUTION: If two populations do not mate and produce fertile offspring, what results?

PROBLEM: The term immunodeficiency means a failure, insufficiency, or delay in the response of the immune system, which may be acquired or inherited.

SOLUTION:
What term means a failure, insufficiency, or delay in the response of the immune system, which may be acquired or inherited?