Flippers of Panguin and Dolphin are considered analogous through they are modifed forelimbs because

Options

A. Absence of certain bones
B. Development from different lineages
C. Structural difference
D. Functional difference.

Answer

**Step-by-Step Solution:**

1. **Understanding Analogous Organs**:
- Analogous organs are those that perform similar functions but have different origins. They arise from different evolutionary paths but adapt to fulfill similar roles in their respective environments.

2. **Identifying the Organisms**:
- In this case, we are comparing the flippers of penguins (birds) and dolphins (mammals). Both are adapted for swimming but belong to different classes of animals.

3. **Analyzing Their Origins**:
- Penguins are birds (Aves) and dolphins are mammals. This indicates that they come from different evolutionary lineages and ancestors.

4. **Functionality**:
- Despite their different origins, both the penguin's flippers and the dolphin's flippers serve the same function: aiding in swimming. This similarity in function is a key characteristic of analogous organs.

5. **Conclusion**:
- Therefore, the flippers of penguins and dolphins are considered analogous because they are modified forelimbs that have developed from different lineages but perform similar functions in an aquatic environment.

6. **Correct Answer**:
- The correct option is "development from different lineages" as it highlights that they have different evolutionary backgrounds while fulfilling the same functional role.

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