Individuals of same species having non-genetic differences due to environment are called :-

Options

A. Biotypes
B. Ecotype
C. Ecophenes
D. None

Answer

To solve the question regarding individuals of the same species having non-genetic differences due to the environment, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks about individuals of the same species that exhibit differences not due to genetic variation but rather due to environmental factors.

2. **Identify Key Terms**: The key terms here are "same species," "non-genetic differences," and "environment." This indicates that we are looking for a term that describes variations that arise from environmental influences rather than genetic differences.

3. **Consider the Options**: The options provided in the transcript are biotypes, ecotypes, and esophines. We need to analyze what each term means in the context of the question.

4. **Define the Terms**:
- **Biotypes**: Generally refer to groups of organisms within a species that have the same genetic makeup but may exhibit some phenotypic differences.
- **Ecotypes**: These are populations within a species that are adapted to specific environmental conditions. They can show variations due to environmental factors.
- **Esophines (or Isophenes)**: These refer to morphological changes that occur in individuals of the same genotype due to environmental factors. They represent non-genetic differences that are temporary and reversible.

5. **Analyze the Context**: Since the question specifically mentions non-genetic differences due to environmental factors, the most appropriate term is "esophines." This term captures the essence of individuals showing phenotypic changes due to environmental influences while maintaining the same genetic background.

6. **Conclusion**: Based on the analysis, the answer to the question is "Esophines."

### Final Answer:
Individuals of the same species having non-genetic differences due to the environment are called **Esophines**.