A tadpole develops into an adult frog by the process of :

Options

A. fertilisation
B. metamorphosis
C. embedding
D. budding

Answer

**Step-by-Step Solution:**

1. **Understanding the Life Cycle of a Frog:**
- Frogs undergo a unique life cycle that includes several stages: egg, tadpole (larval stage), and adult frog.
- The tadpole is an aquatic larval form that eventually transforms into a terrestrial adult frog.

2. **Fertilization and Development:**
- Frogs exhibit external fertilization, where eggs are fertilized outside the female's body.
- The fertilized egg develops into a zygote, which then forms an embryo.

3. **Larval Stage:**
- After the embryo stage, the frog develops into a tadpole, which is a larval form.
- The tadpole has gills for breathing underwater and a tail for swimming.

4. **Metamorphosis:**
- The process by which a tadpole transforms into an adult frog is called metamorphosis.
- During metamorphosis, the tadpole undergoes significant physical changes: it develops lungs, absorbs its tail, and develops limbs.

5. **Conclusion:**
- Therefore, the correct answer to the question is that a tadpole develops into an adult frog by the process of **metamorphosis**.

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