AP BIOLOGY

EVOLUTION

EVIDENCE FOR EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Bird and butterfly wings have the same functions but different structures. What type of evolutionary evidence is this?
A
Analogous structures
B
Embryological development
C
Genetic comparisons
D
Homologous structures
Explanation: 

Detailed explanation-1: -Wing of a butterfly and wings of birds are analogous organs as their origin is not the same but they perform similar functions. We can infer the evolutionary relationship between organisms and this is an example of convergent evolution .

Detailed explanation-2: -Butterfly and bird wings, on the other hand, are analogous and do not meet any of the criteria. Analogous structures may look similar on the surface, but since their similarity is due to convergence rather than common ancestry, analogous structures generally don’t meet all of the criteria above.

Detailed explanation-3: -The wings of a bird and of an insect are analogous organs. Both of these species have wings that they use for flight and yet their wings came from dissimilar ancestral origins.

Detailed explanation-4: -Bird and Bat wings are analogous because they evolved independently. But the wing bones are homologous because they were inherited from the common ancestor.

Detailed explanation-5: -The wings of a bird and the wings of an insect are evolved independently of each other. Convergent evolution is the independent development of similar traits in organisms from various periods in time or space. In convergent evolution, features from species with various ancestries are comparable.

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