which of the following is not correct with respect to binomial nomenclature ?

Options

A. The naming system of binomial nomenclature was given by Carolus Linnaeus is being practised by biologists all over the world .
B. Both the word in a biological name , when handwritten , are separately underlined , or printed in italics to indicate their Latin origin
C. The first word starts with a capital letter while the second one starts with a small letter .
D. The first word in biological name represents the specific epithet while the second component denotes the genus.

Answer

To solve the question regarding which statement is not correct with respect to binomial nomenclature, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understanding Binomial Nomenclature**:
Binomial nomenclature is a formal system of naming species. Each species is given a name that consists of two parts: the genus name and the species identifier (specific epithet).

2. **Analyzing the First Statement**:
- The first statement claims that the naming system was given by Carl Linnaeus and is practiced by biologists worldwide.
- This statement is **correct**. Carl Linnaeus is indeed the father of binomial nomenclature.

3. **Analyzing the Second Statement**:
- The second statement mentions that both words in a biological name, when handwritten, are separately underlined or printed in italics to indicate their Latin origin.
- This statement is also **correct**. When handwritten, the names are underlined, and when printed, they are italicized.

4. **Analyzing the Third Statement**:
- The third statement states that the first word starts with a capital letter while the second word starts with a small letter.
- This statement is **correct**. In binomial nomenclature, the genus name (first word) is capitalized and the specific epithet (second word) is in lowercase.

5. **Analyzing the Fourth Statement**:
- The fourth statement claims that the first word in the biological name represents the specific epithet while the second component denotes the genus.
- This statement is **incorrect**. In binomial nomenclature, the first word represents the genus and the second word represents the specific epithet.

### Conclusion:
Based on the analysis, the statement that is not correct with respect to binomial nomenclature is the fourth one.

**Final Answer**: The incorrect statement is option 4.

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