Which organism has the life cycle described as Egg -> Larva -> Fry -> Juvenile -> Adult?

Which organism has the life cycle described as Egg -> Larva -> Fry -> Juvenile -> Adult?

• A. Nematode
• B. Fish
• C. Insect
• D. Plant

Answer: (B)

This sequence is characteristic of fish life cycles. The clue is the term “fry,” which is used specifically for young fish that have hatched from eggs, are swimming on their own, but not yet reached full maturity. After fry, fish progress to a juvenile stage and finally an adult. Other groups don’t use the fry stage: nematodes go from egg to larva to adult without a named “fry” stage; insects have eggs, larvae or nymphs, and often pupae before adulthood; plants move through seeds or spores to mature plant forms, not a larval-to-adult sequence. So the presence of a fry clearly points to fish.

This sequence is characteristic of fish life cycles. The clue is the term “fry,” which is used specifically for young fish that have hatched from eggs, are swimming on their own, but not yet reached full maturity. After fry, fish progress to a juvenile stage and finally an adult. Other groups don’t use the fry stage: nematodes go from egg to larva to adult without a named “fry” stage; insects have eggs, larvae or nymphs, and often pupae before adulthood; plants move through seeds or spores to mature plant forms, not a larval-to-adult sequence. So the presence of a fry clearly points to fish.