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42 votes
10. Fully-formed vertebrates might not have a lot in common, but their embryos show more similarities. What do all vertebrate embryos have in common at some point in their development? *

A. Gill slits and lungs
B. Tails and lungs
C. Tails and gill slits
D. Tails and fins

User Luger
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2 Answers

17 votes
17 votes
C. Tails and hill slits
User Sumita
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5 votes
5 votes
Gill slits and tails
User Omeralper
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