In metamorphosis, a _______ changes into an adult through a series of major changes.

Options

A. embryo
B. foetus
C. larva
D. ova

Explanation

**Step-by-Step Solution:**

1. **Understanding Metamorphosis**: Metamorphosis is a biological process where an organism undergoes significant physical changes as it develops from an immature form to an adult form. This term is derived from the Greek word "morph," meaning shape or form.

2. **Identifying the Organism**: In the context of metamorphosis, the organism that undergoes this transformation is typically an insect or amphibian. A common example is a frog, which starts its life as a tadpole.

3. **Stages of Development**: During metamorphosis, the organism goes through various stages. For instance, in frogs, the stages include the egg, larva (tadpole), and then the adult frog. Each stage has distinct characteristics and forms.

4. **Key Features of Metamorphosis**: The larval stage does not resemble the adult form. For example, a tadpole has gills and a tail, which are features that will change as it develops into a frog. This transformation involves a series of major changes in structure and function.

5. **Conclusion**: Therefore, in metamorphosis, a **larva** changes into an adult through a series of major changes.

**Final Answer**: In metamorphosis, a **larva** changes into an adult through a series of major changes.

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