Name the excretory units of kidneys of frog and rabbit.

Explanation

**Step-by-Step Solution:**

1. **Identify the Excretory Units:** The excretory units of the kidneys in both frogs and rabbits are called nephrons.

2. **Understand the Structure of Nephrons:** Nephrons consist of two main components: the renal corpuscles and the renal tubules.

3. **Functions of Nephrons:** The nephron is responsible for three major functions: filtration, reabsorption, and secretion.

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