Which of these insects undergoes gradual metamorphosis?

Crickets undergo gradual metamorphosis, which is characterized by three life stages: egg, nymph, and adult. In this type of metamorphosis, the nymphs resemble small adults and gradually grow into their adult form through a series of molts, rather than transitioning through distinct larval and pupal stages as seen in complete metamorphosis.

Understanding the life cycle of crickets is essential, as it impacts their behavior, growth, and the methods employed for their control in pest management. Ants, flies, and beetles, in contrast, demonstrate complete metamorphosis, which involves a significant transformation period where larvae look completely different from adults, making their development less direct than that of crickets.