Which one is not responsible for biodiversity loss

Options

A. Alien species invasion
B. Co-extinction
C. ex-situ conservation
D. Deforestation.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks us to identify which option is not responsible for biodiversity loss. This means we need to evaluate each option to see if it contributes to the decline of biodiversity.

2. **Evaluating the Options**:
- **Option 1: Alien Species Invasion**: This refers to the introduction of non-native species into an ecosystem. Some of these species can become invasive, outcompeting native species for resources, leading to their decline or extinction. Therefore, this option is responsible for biodiversity loss.

- **Option 2: Co-extinction**: This phenomenon occurs when the decline or extinction of one species leads to the decline or extinction of another species that depends on it (e.g., a host species and its parasite). This also contributes to biodiversity loss, making this option incorrect as well.

- **Option 3: Ex-situ Conservation**: This is a conservation strategy that involves protecting endangered species by keeping them in controlled environments outside their natural habitats (like zoos or botanical gardens). Since this method aims to conserve biodiversity rather than diminish it, this option is not responsible for biodiversity loss.

- **Option 4: Deforestation**: This is the large-scale removal of forests, which leads to habitat destruction and loss of species. It is a significant contributor to biodiversity loss, making this option incorrect.

3. **Conclusion**: After evaluating all the options, we find that the only option not responsible for biodiversity loss is **Ex-situ Conservation**.

**Final Answer**: Ex-situ conservation is not responsible for biodiversity loss.

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