Anatomically and structually different, but function similar structures are called

Options

A. Analogous
B. Divergent
C. Homologous
D. Convergent

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term that describes structures that are anatomically and structurally different but serve similar functions.

2. **Identifying Key Terms**: The key terms in the question are "anatomically and structurally different" and "function similar." This indicates that we are looking for a specific type of biological structure.

3. **Analyzing the Options**: The options provided are:
- Analogous
- Divergent
- Homologous
- Conversion

4. **Defining Analogous Structures**: Analogous structures are those that have different anatomical and structural characteristics but perform similar functions. An example is the wings of a butterfly and the wings of a bird; they serve the same function (flight) but have different structures and origins.

5. **Defining Homologous Structures**: Homologous structures, on the other hand, have similar anatomical and structural characteristics but may serve different functions. An example is the forelimbs of humans and whales; they have a similar structure but serve different purposes (manipulation vs. swimming).

6. **Understanding Divergent Evolution**: Divergent evolution refers to the process where two or more related species become more dissimilar over time, often leading to homologous structures. This is not what the question is asking.

7. **Conclusion**: Based on the definitions and the analysis of the options, the correct answer to the question is "analogous."

8. **Final Answer**: Anatomically and structurally different but functionally similar structures are called **analogous** structures.

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