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

[EX Q]: Modern members of the reptiles group live in many different habitats and are found on every continent except antarctica.
[EX A]: Modern members of what broad animal group live in many different habitats and are found on every continent except antarctica?

[EX Q]: Reptiles typically reproduce sexually.
[EX A]: How do reptiles typically reproduce?

[EX Q]: Humans have 23 pairs pairs of chromosomes.
[EX A]:
How many pairs of chromosomes do human have ?