The type of epithelial tissue that is specialized to stretch and change in appearance in response to increased tension is epithelium.

The type of epithelial tissue that is specialized to stretch and change in appearance in response to increased tension is called transitional epithelium. This type of epithelium is found in organs that need to expand and contract, such as the bladder and uterus.

Here are the steps to answer your question:

1. Understand the question: The question is asking about a specific type of epithelial tissue that can stretch and change its appearance when there is increased tension.

2. Identify the type of epithelial tissue: The type of epithelial tissue that has this ability is the transitional epithelium.

3. Explain the characteristics of transitional epithelium: Transitional epithelium is a type of tissue that consists of multiple layers of epithelial cells which can contract and expand. This ability to stretch and then return to its normal state is what makes this tissue unique.

4. Identify where transitional epithelium is found: This type of epithelial tissue is typically found in organs that need to expand and contract, such as the bladder and uterus.

5. Conclusion: Therefore, the type of epithelial tissue that is specialized to stretch and change in appearance in response to increased tension is the transitional epithelium.