EVOLUTION
EVIDENCE FOR EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Shows that organisms have new and unique structures show up over time, which has no relation to the organisms they descended from
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Shows that organisms inherited structures from ancestors, since the structure has lost much or all of its original size and function over time
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Detailed explanation-1: -But the wings of an ostrich have lost their original use. Structures that have lost their use through evolution are called vestigial structures. They provide evidence for evolution because they suggest that an organism changed from using the structure to not using the structure, or using it for a different purpose.
Detailed explanation-2: -How do vestigial structures indicate that present-day organisms are different from their ancient ancestors? The structures may once have functioned in the ancestors of the organism.
Detailed explanation-3: -Vestigial structures The human tail, which is reduced to the tailbone during development, is one example. Vestigial structures can provide insights into an organism’s ancestry. For instance, the tiny vestigial leg bones found in some snakes reflect that snakes had a four-legged ancestor.