Common outlet of faces, nitrogenous wastes and sex cells in frog is called…………. .

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the common outlet in frogs through which faeces, nitrogenous wastes, and sex cells are expelled.

2. **Identifying the Structure**: In frogs, there is a specific structure that serves as the common outlet for these substances.

3. **Naming the Structure**: This structure is known as the "Cloacal Apparatus" or "Cloacal Aperture".

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