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Wings on flightless birds and hind leg bones in whales are examples of:

AAdaptive new traits
BConvergent bird wings
CVestigial structures
DHomologous limb bones
Answer & Solution
Correct answer: C. Vestigial structures
1. They have no apparent function. 2. They are vestigial structures. 3. Leaves on some cacti are another example. _Source: OpenStax Biology 2e, Chapter 18, Evolution and the Origin of Species (CC BY 4.0)._
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