What type of evidence for the theory of common descent would include the nonfunctional wings of an ostrich?
A) vestigial structures
B) homologous structures
C) shared developmental pathways
D) DNA similarity

Question

Quizplus · Accepted Answer

Vestigial structures are features that serve no purpose in an organism but are remnants of structures that were functional in ancestral species. The nonfunctional wings of an ostrich are vestigial structures that serve as evidence for the theory of common descent, as they suggest that ostriches share ancestry with birds that have functional wings.

What Type of Evidence for the Theory of Common Descent