In arthropods ecdysis is

Options

A. Increase in size due to removal of exoskeleton
B. Change in feeding habit from larva to adult
C. Finding proper mate
D. Retaining the shape from larva to adult

Answer

**Step-by-Step Solution:**

1. **Understanding Ecdysis**: Ecdysis is a biological process that refers to the shedding of the outer layer of skin or cuticle. This process is crucial for growth in organisms that have a hard exoskeleton, such as arthropods.

2. **Identifying the Context**: In arthropods, ecdysis is specifically related to the molting of the exoskeleton. As these organisms grow, their exoskeleton becomes restrictive, necessitating a shedding process to allow for increased size.

3. **Analyzing the Options**:
- **Option 1**: Increase in size due to the removal of the exoskeleton. This aligns with the definition of ecdysis, as shedding the old exoskeleton allows the organism to grow.
- **Option 2**: Change in feeding habits from larva to adult. This describes metamorphosis rather than ecdysis.
- **Option 3**: Finding the proper mate. This is a behavioral aspect and not directly related to ecdysis.
- **Option 4**: Retaining the shape from larva to adult. This does not describe ecdysis, as it involves growth and change rather than retention.

4. **Conclusion**: Based on the analysis, the correct answer is **Option 1**: Increase in size due to the removal of the exoskeleton.