How does the creation of variations in a species promote survival?

Explanation

### Step-by-Step Solution:

1. **Understanding Variations**: Variations refer to the differences in traits among individuals within a species. These can arise due to genetic mutations, environmental factors, and reproduction methods.

2. **Adaptation to Habitat**: Each species is adapted to its specific habitat. This adaptation allows them to thrive under normal conditions. However, habitats can change due to environmental factors like climate change, natural disasters, or human activities.

3. **Impact of Environmental Changes**: When a drastic change occurs in the environment, it can threaten the survival of a species. If all individuals in a species are genetically identical, they may all be equally vulnerable to the new conditions.

...