Question

Based on these images, what can you say about the tentacles of an octopus and the limbs of a lizard?                                                                                                                  
A)They’re homologous structures.
B)They’re analogous structures.
C)They’re vestigial structures.
D)They’re neither homologous nor analogous structures.
E)They’re neither vestigial nor homologous structures.

Answer 1

The answer to this question is B. The tentacles of an octopus and the limbs of a lizard are analogous to one another. They cannot be homologous since the traits were not inherited from a common ancestor. Instead, the organisms had developed these traits independently from the common ancestry. That is why the two traits are considered analogies.

Answer 2

The answer to this question is B.