Define homeotherms and give one example

Explanation

**Step-by-Step Solution:**

1. **Definition of Homeotherms**: Homeotherms are organisms that maintain a constant internal body temperature regardless of external environmental conditions. This ability is achieved through various metabolic processes.

2. **Mechanisms of Temperature Regulation**: Homeotherms utilize different physiological mechanisms to regulate their body temperature. Two common processes include:
- **Shivering**: This is an involuntary muscle contraction that generates heat when the body is cold.
- **Sweating**: This is a process where sweat glands release moisture onto the skin surface, which cools the body when it evaporates.

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