An ecotype is a type of species in which environmentally induced variations are

Answer

To solve the question regarding ecotypes and the type of variations they exhibit, we can break down the solution into the following steps:

### Step-by-Step Solution:

1. **Understanding Ecotypes**:
- An ecotype refers to a genetically distinct population within a species that has adapted to specific environmental conditions. These adaptations can lead to variations in traits among populations of the same species.

**Hint**: Think of ecotypes as specialized groups within a species that thrive in different environments.

2. **Identifying the Nature of Variations**:
- The variations seen in ecotypes are induced by environmental factors. This means that these variations are not random but are responses to specific environmental pressures.

**Hint**: Consider how different environments (like altitude, temperature, or soil type) can lead to different adaptations in the same species.

3. **Evaluating the Options**:
- The question provides several options regarding the nature of variations in ecotypes. We need to determine which option accurately reflects the characteristics of ecotypes.
- The first option is "temporary," which does not accurately describe ecotypes, as the variations can be stable over time.
- The second option is "genetically not related," which is misleading. While ecotypes can exhibit different traits, they are still genetically related as they belong to the same species.
- The third option is "permanent," which is also not correct because the variations can change with shifts in environmental conditions.

**Hint**: Analyze each option critically to see if it aligns with the definition and characteristics of ecotypes.

4. **Conclusion**:
- After evaluating the options, it becomes clear that the correct answer is that ecotypes exhibit variations that are genetically related but adapted to different environments. Therefore, the most appropriate choice is that ecotypes are characterized by "genetically distinct variations induced by environmental factors."

**Hint**: Remember that ecotypes are about adaptation and genetic diversity within a species due to environmental influences.

### Final Answer:
An ecotype is a type of species in which environmentally induced variations are genetically distinct but related to the same species.