Multiple Choice
What is the best evidence that two organisms share a common evolutionary ancestry?
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21. Evolution
Evidence of Evolution
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Why are bones often studied when trying to determine the evolutionary origins of birds?
A
Bones can provide information about the diet of ancient birds.
B
Bones are the only type of fossil that can be found from ancient birds.
C
Bones can show the coloration patterns of ancient birds.
D
Bones can reveal similarities in structure between birds and their ancestors.
Verified step by step guidance1
Bones are crucial in studying evolutionary origins because they preserve well over time, allowing scientists to examine ancient structures.
The structure of bones can reveal homologous features, which are traits inherited from a common ancestor, indicating evolutionary relationships.
By comparing the bone structures of birds with those of other species, scientists can identify similarities that suggest a shared evolutionary lineage.
Bones can provide insights into the functional adaptations of ancient birds, such as flight capabilities, which are key to understanding their evolutionary history.
Studying the morphology of bones helps in reconstructing the phylogenetic tree, showing how birds are related to other vertebrates, particularly dinosaurs.
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