TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Excess potassium induces larval metamorphosis in _ marine invertebrate species.

SOLUTION: four

PROBLEM: Infinity divided by _ is infinity.

SOLUTION: two

PROBLEM: Most active nests contain _ eggs that are buff-colored with dark speckles.

SOLUTION:
six