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When the Isthmus of Panama formed, a land bridge resulted between North and South America. What ...

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When the Isthmus of Panama formed, a land bridge resulted between North and South America. What ...

When the Isthmus of Panama formed, a land bridge resulted between North and South America. What opportunities for colonization did this land bridge offer?
A) colonization of the newly arisen land by organisms from North and South America
B) colonization of North America by organisms from South America
C) colonization of South America by organisms from North America
D) both B and C
E) all of the above

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Biological Science, Canadian Edition

Edition: 2^nd

Authors: Freeman, Shar, Harrington

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Good timing, thanks!

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