When the last member of a particular species dies, the species is said to be ......

Options

A. isolated
B. endangered
C. diversified
D. extinct

Answer

**Step-by-Step Solution:**

1. **Understanding the Definition**: The question asks for the term used when the last member of a species dies. This situation signifies the end of that species.

2. **Identifying the Term**: The term used to describe a species that no longer has any living members is "extinct."

3. **Example for Clarity**: To illustrate this concept, we can refer to the Dodo bird, which was a species that became extinct in 1697 when the last individual died.

4. **Conclusion**: Thus, when the last member of a particular species dies, the species is said to be "extinct."

**Final Answer**: Extinct species.

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