In the binomial system of taxonomy, developed during the `18^(th)` centuary by C. Linnaeus, the second word of an organism's biological name represents

Options

A. species
B. genus
C. race
D. family.

Explanation

**Step-by-Step Solution:**

1. **Understanding Binomial Nomenclature**: The binomial system of taxonomy was developed by Carl Linnaeus in the 18th century. It is a method for naming organisms using two names.

2. **Components of the Name**: In this system, each organism is given a two-part name. The first part is called the "genus" and the second part is called the "species".

3. **Identifying the Second Word**: The question specifically asks about the second word of an organism's biological name. According to the binomial nomenclature, this second word is the species name.

4. **Example for Clarity**: For instance, in the name "Homo sapiens", "Homo" is the genus name, and "sapiens" is the species name. Thus, "sapiens" identifies the specific species within the genus Homo.

5. **Conclusion**: Therefore, in the binomial system of taxonomy, the second word of an organism's biological name represents the species to which the organism belongs.

**Final Answer**: The second word of an organism's biological name represents the species.

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