Which of the following provides the best example of how comparative embryology supports the theory of evolution? (2 points)
a
Humans do not lay eggs as birds do, but birds produce yolk sacs instead of embryos, suggesting birds evolved later than humans.
b
Humans have a tailbone that is visible during embryonic development, which suggests that humans evolved to depend on a useful tailbone.
c
Humans do not have gills as fish do, but human embryos have gill slits, suggesting humans and fish share a common evolutionary ancestor.
d
Humans have stem cells that develop in an unpredictable way, which suggests that other organisms also evolved to develop in the same manner.
Answers: 3
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Which of the following provides the best example of how comparative embryology supports the theory o...
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