The series of changes which occur during transition from egg to adult form is________.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term that describes the series of changes that occur as an organism develops from an egg to its adult form.

2. **Identifying the Process**: The process that describes these changes is known as metamorphosis. This is a biological term used to describe the transformation that certain organisms undergo during their life cycle.

3. **Examples of Metamorphosis**: In many organisms, such as amphibians (like frogs), the life cycle includes distinct stages:
- The egg hatches into a larva (tadpole in the case of frogs).
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