Human arm and whale flipper classification?

Question: Human arm and whale flipper classification?

The human arm and whale flipper are both considered as homologous structures, indicating that they share a common ancestry. They are classified as limbs, but they have adapted to different environments and functions. The human arm is primarily used for grasping and manipulating objects, while the whale flipper has evolved for swimming and maneuvering in water. The arm has a more complex skeletal structure, with a long upper arm bone, forearm bones, and hand bones, while the flipper has a simplified skeletal structure with elongated finger bones and no distinct wrist or elbow joint. Overall, while the human arm and whale flipper share a common evolutionary origin, they have undergone significant modifications and adaptations to serve their respective functions in different environments.

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