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Lauren1 Lauren1
wrote...
Posts: 4120
9 years ago
The sudden reappearance of sauropod dinosaurs in North America about 70 million years ago probably reflects _______________.
a.   immigration from South America
b.   biases in collecting
c.   re-evolution
d.   convergence
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5 Replies
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Answer accepted by topic starter
milestone23milestone23
wrote...
Top Poster
Posts: 9919
9 years ago
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Retired master

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Lauren1 Author
wrote...
9 years ago
This is perfect, thank you Grinning Face
wrote...
9 years ago
Yup, I'm pretty confident it's correct, bye for now.
Retired master
wrote...
3 years ago
Thank you
wrote...
2 years ago
Nice
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