Name the basic nitrogenous catabolite of proteins produced in the hody of a whale. In what form is it eliminated from the body? What is advantage of this kind of excretion?

Explanation

### Step-by-Step Solution:

1. **Identify the Basic Nitrogenous Catabolite of Proteins in Whales:**
- The basic nitrogenous catabolite of proteins produced in the body of a whale is **urea**. Whales, as mammals, primarily convert ammonia (which is toxic) into urea for excretion.

2. **Form of Elimination from the Body:**
- Whales eliminate nitrogenous waste in the form of **urea** rather than ammonia. This process occurs in the liver, where ammonia is converted into urea through the **ornithine cycle**.

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