What are ecothermic and endothermic animals?

Explanation

**Step-by-Step Solution:**

1. **Definition of Endothermic Animals:**
- Endothermic animals, commonly referred to as warm-blooded animals, are those that can maintain a constant body temperature regardless of the external environment. This ability allows them to remain active in various environmental conditions.

2. **Examples of Endothermic Animals:**
- Common examples of endothermic animals include birds and mammals. These animals have physiological mechanisms that enable them to generate heat internally, thus maintaining their body temperature.

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