Final answer:
The stages of a newt's life cycle in correct order are Eggs, Larva, Young Newt, Adult Newt, which begins with internal egg fertilization and progresses through larval and juvenile stages before reaching adulthood.
Step-by-step explanation:
The correct arrangement of the stages of a newt's life cycle from first to last is 1) Eggs, Larva, Young Newt, Adult Newt. Newts begin their life cycle as eggs, which are often laid in water and fertilized internally. After the eggs hatch, they enter the larval stage, where they live in water and breathe with gills. As larvae develop, they undergo metamorphosis, losing their gills, growing limbs, and transforming into young newts. These juveniles continue to mature until they reach the adult stage, completing the life cycle.