Which of the following pairs is wrong ?

Options

A. uricotelic - Birds
B. Ureotelic - Insects
C. Ammonotelic - Bony fishes
D. Uretelic - Elephant

Answer

To solve the question "Which of the following pairs is wrong?" we need to analyze the terms and their corresponding excretory products. Here’s a step-by-step breakdown:

### Step 1: Understand the Terms
- **Eurycotelic**: Refers to organisms that can tolerate a wide range of environmental conditions. This term is often used in the context of birds and insects.
- **Uricotelic**: Refers to organisms that excrete uric acid as their primary nitrogenous waste. Common examples include birds and reptiles.
- **Ureotelic**: Refers to organisms that excrete urea. This is typical of many mammals and some amphibians.
- **Ammonotelic**: Refers to organisms that excrete ammonia, which is primarily found in aquatic organisms like bony fishes.

### Step 2: Analyze Each Pair
1. **Eurycotelic Birds**: Correct, as birds can tolerate a variety of environmental conditions.
2. **Euryotelic Insects**: Correct, as insects can also adapt to various environments.
3. **Ammonotelic Bony Fishes**: Correct, as bony fishes primarily excrete ammonia.
4. **Ureotelic Elephants**: Correct, as elephants, being mammals, excrete urea.

### Step 3: Identify the Incorrect Pair
After analyzing the pairs, we see that:
- The term "Ureotelic Insects" is incorrect because insects are not typically classified as ureotelic; they are more often uricotelic.

### Conclusion
The incorrect pair is **Ureotelic Insects**.

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