Answer:
Similarities in embryos are evidence of common ancestry. All vertebrate embryos, for example, have gill slits and tails. Most vertebrates, except for fish, lose their gill slits by adulthood.
Explanation:
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Road crashes are the leading cause of unintentional deaths in America. 33,880 people die in road crashes annually according to CDC (Center for Disease Control). They contribute to approximately 5.2% of total American deaths, and the 4th leading cause of the death, killing people at a rate of 42.7%