In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

[EX Q]: Monarch caterpillars have _ pairs of tentacles.
[EX A]: two

[EX Q]: Degradation is a result of _ simultaneous processes.
[EX A]: two

[EX Q]: Cats have four paws but only _ ma.
[EX A]:
one