* Different Classes: Fish belong to the class Pisces, while frogs belong to the class Amphibia. These are distinct classifications within the animal kingdom, representing fundamental differences in their biology and evolution.
* Habitat and Respiration: Fish are adapted for life entirely underwater, breathing through gills. Frogs, though they spend part of their lives in water, are amphibians, meaning they can also live on land and breathe air through lungs. They have a larval stage (tadpole) that lives in water and breathes with gills.
* Skin and Scales: Fish have scales, which are protective plates on their skin. Frogs have smooth, moist skin that helps them absorb water and breathe through their skin.
* Reproduction: Fish generally lay eggs in water, and the young hatch as miniature versions of the adult. Frogs lay eggs in water as well, but their young (tadpoles) undergo a complete metamorphosis, transforming into adults with legs and lungs.
In Summary: While both fish and frogs are aquatic animals, their different biological characteristics place them in separate categories.