Vestigial Structures Worksheet
Explore the concept of vestigial structures, their evolutionary significance, and examples in various organisms.
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Vestigial Structures: Evidence of Evolution
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Read each question carefully and provide your best answer based on your understanding of vestigial structures and evolutionary biology.
1. Which of the following best defines a vestigial structure?
A structure that has evolved to perform a new function.
A fully functional structure essential for survival.
A homologous structure found in all species.
A structure that has lost all or most of its original function through evolution.
2. The human appendix is considered a vestigial structure because:
It plays a crucial role in digestion.
Its removal has no significant impact on health for most individuals.
It is a highly developed organ in humans.
It is unique to the human species.
3. The presence of vestigial structures provides strong evidence for the process of .
4. The tiny, non-functional hind leg bones found in whales are an example of a structure.
5. Explain how the existence of vestigial structures supports the theory of evolution by natural selection.
6. Vestigial structures are always completely useless and have no function whatsoever in the organism.
True
False
7. The human coccyx (tailbone) is considered a vestigial structure.
True
False
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