OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Structures that share a common ancestry or are similar because they are modified versions of structures from a common ancestor that contain the same basic bone structure are
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vestigial
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analogous
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homologous
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young in origin
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Explanation:
Detailed explanation-1: -Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor.
Detailed explanation-2: -Traits that are shared due to common ancestry are homologous structures. The similar bone arrangement of the human, bird, and whale forelimb is a structural homology. Structural homologies indicate a shared common ancestor.
Detailed explanation-3: -Vestigial structures are homologous to fully functioning structures inherited by related lineages. Thus, they provide strong evidence of common ancestry and can help us trace the evolutionary origin of the species with the vestigial structures.
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