The population of animal X has drastically gone down. Any further decline in its population could wipe the traces of its species from the surface of the Earth. Animal X belongs to the category of

Options

A. extinct species
B. endemic species
C. threatened species
D. endangered species

Answer

To determine the category to which animal X belongs, we can analyze the information provided step by step:

### Step 1: Understand the Situation
The question states that the population of animal X has drastically decreased, and if this decline continues, the species could become extinct. This indicates that the species is currently at risk.

**Hint:** Look for keywords in the question that indicate the level of risk to the species.

### Step 2: Evaluate the Options
1. **Extinct Species:** These species no longer exist anywhere on Earth. Since animal X still has a population, this option is incorrect.

**Hint:** Consider whether the species still has any living members.

2. **Endemic Species:** These species are confined to a specific geographical area. While animal X may be limited in distribution, the key point is that its population is declining drastically, which does not specifically categorize it as endemic.

**Hint:** Think about whether the species is defined by its geographical range or its population status.

3. **Vulnerable Species:** These species are at risk of becoming endangered in the near future. However, the question indicates that animal X is already in a critical situation, suggesting it is more than just vulnerable.

**Hint:** Determine if the species is merely at risk or if it is already facing imminent extinction.

4. **Endangered Species:** These species are at a high risk of extinction in the near future. Given that the question states that any further decline could wipe out animal X, this option is the most appropriate.

**Hint:** Assess whether the species is currently at a high risk of extinction.

### Step 3: Conclusion
Based on the analysis, animal X belongs to the category of **endangered species**. This means it is at a significant risk of extinction if the population decline continues.

**Final Answer:** Animal X belongs to the category of **endangered species**.

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