Question

Green Iguanas, tiger salamanders, grizzly bears, and bald eagles all have four limbs. Is this observation homologous or analogous and why?

Answer 1

We know

Homologous - same evolutionary origin and different functions

Analogous - different evolutionary origin but same function

So here this observation is homologous as all are of same ancestral origin but perform different function.

The limb of green iguana and tiger salamander help in crawling. The limb of grizzly bear help in walking. The limb of bald eagle help in catching prey.

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