The cloaca in frog is a common chamber for the urinary tract, reproductive tract and

Options

A. (a) alimentary canal
B. (b) notochord
C. (c) portal system
D. (d) lymphatic system

Answer

**Step-by-Step Solution:**

1. **Understanding the Cloaca**: The cloaca in frogs is a common chamber that serves multiple functions. It is important to identify what systems connect to this chamber.

2. **Identifying the Tracts**: The cloaca receives inputs from three main systems:
- The **urinary tract**, which is responsible for excreting waste products such as urine.
- The **reproductive tract**, which is involved in the production and passage of gametes (sperm in males and eggs in females).
- The **digestive tract**, which is responsible for processing food and excreting waste (fecal matter).

3. **Confirming the Third Tract**: Based on the information, the third tract that joins the cloaca is the **elementary canal**, which is part of the digestive system.

4. **Conclusion**: Therefore, the cloaca in frogs is a common chamber for the urinary tract, reproductive tract, and the elementary canal (digestive tract).

5. **Final Answer**: The correct answer is the **elementary canal**.

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