________animal contains both testes and ovaries .

Explanation

To answer the question "________ animal contains both testes and ovaries," we can follow these steps:

1. **Identify the Terms**: Understand the terms "testes" and "ovaries." Testes are the male reproductive organs that produce sperm, while ovaries are the female reproductive organs that produce ova (eggs).

2. **Define the Concept**: Recognize that animals can have different reproductive systems. Some animals possess only male or female reproductive organs, while others may have both.

3. **Introduce Hermaphroditism**: The animals that contain both testes and ovaries are known as hermaphrodites. This means they have the capability to produce both sperm and ova.

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