TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Ticks mature in _ stages, moving from egg to larva and nymph to adult.

SOLUTION: four

PROBLEM: Older caterpillars have _ different color forms.

SOLUTION: two

PROBLEM: Insects have antennae, _ body parts and six legs.

SOLUTION:
three