toad contains

Options

A. salivary glands, mucus glands and parotid glands
B. slippery skin, yellow pigment and abundant mucus glands
C. parotid glands , warty skin and semicircular canals
D. Bifid tongue, slippery skin and mucus galands.

Answer

### Step-by-Step Solution:

1. **Identify the Components of a Toad**:
- Toads have several distinct anatomical features that are important to recognize.

2. **Parotid Gland**:
- Toads possess two parotid glands located behind their tympanic membranes (eardrums). These glands are responsible for secreting toxins that can deter predators.

3. **Warty Skin**:
- The skin of a toad is characterized as being dry, rough, and warty. This texture is not only a physical characteristic but also serves a purpose in their adaptation to their environment.

4. **Semicircular Canal**:
- Toads have a semicircular canal in their head, which is part of their inner ear structure. This canal plays a crucial role in balance and spatial orientation.

5. **Conclusion**:
- Based on the features discussed, the correct answer to the question "What does a toad contain?" is: **Parotid gland, warty skin, and semicircular canal**.

### Final Answer:
- The correct option is: **Parotid gland, warty skin, semicircular canal**.

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