Amphibians are known to undergo metamorphosis; Which term describes this process?

• A. Metamorphosis
• B. Direct development
• C. Parthenogenesis
• D. Binary fission

Answer: (A)

Metamorphosis describes the dramatic transformation that amphibians undergo, changing from larval forms like tadpoles with gills and tails into adults with legs, lungs, and a different lifestyle. This is exactly the kind of major structural and lifestyle change the term captures.

Direct development would skip a larval stage and not involve this kind of metamorphic transformation. Parthenogenesis is reproduction without fertilization, not a developmental change. Binary fission is a form of cell division seen in some single-celled organisms, not how multicellular animals develop.