Given the cladogram and the geographic information, is it likely that the Panamanian species arose through allopatric speciation? O No. While the Isthmus of Panama prevents gene flow between the two Panamanian oyster species, it has been a very long time since this barrier (the isthmus) formed. O Yes, because the Caribbean Panamanian species is not related to any other oysters east of the Isthmus of Panama, but it is closely related to the Pacific Panamanian species O Yes, because the two species of Panamanian oysters are most closely related to each other, they are close in proximity, and the Isthmus of Panama was once not a barrier to gene flow O No, because the two species of Panamanian oysters are more closely related to each other than they are to oysters from North America or South America O No, because the two species of Panamanian oysters are more closely related to the North American oysters than they are to South American oysters

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South America
North America
Pacific Panama
Caribbean Panama
The cladogram above illustrates the relationships between four hypothetical species
of oysters found along the coasts of western North America, western South America,
and western (Pacific) and eastern (Caribbean) Panama. Use this tree to answer the
following question.
The two species from Panama are separated from one another by the Isthmus of
Panama, the narrow land bridge connecting North and South America, which formed
approximately 2.5 million years ago.
Given the cladogram and the geographic information, is it likely that the Panamanian
species arose through allopatric speciation?
O No. While the Isthmus of Panama prevents gene flow between the two Panamanian oyster species, it has
been a very long time since this barrier (the isthmus) formed.
Yes, because the Caribbean Panamanian species is not related to any other oysters east of the Isthmus of
Panama, but it is closely related to the Pacific Panamanian species
nonian ovsters are most closely related to each other, they are close in
Transcribed Image Text:South America North America Pacific Panama Caribbean Panama The cladogram above illustrates the relationships between four hypothetical species of oysters found along the coasts of western North America, western South America, and western (Pacific) and eastern (Caribbean) Panama. Use this tree to answer the following question. The two species from Panama are separated from one another by the Isthmus of Panama, the narrow land bridge connecting North and South America, which formed approximately 2.5 million years ago. Given the cladogram and the geographic information, is it likely that the Panamanian species arose through allopatric speciation? O No. While the Isthmus of Panama prevents gene flow between the two Panamanian oyster species, it has been a very long time since this barrier (the isthmus) formed. Yes, because the Caribbean Panamanian species is not related to any other oysters east of the Isthmus of Panama, but it is closely related to the Pacific Panamanian species nonian ovsters are most closely related to each other, they are close in
ree to answer the
following question.
The two species from Panama are separated from one another by the Isthmus of
Panama, the narrow land bridge connecting North and South America, which formed
approximately 2.5 million years ago.
Given the cladogram and the geographic information, is it likely that the Panamanian
species arose through allopatric speciation?
O No. While the Isthmus of Panama prevents gene flow between the two Panamanian oyster species, it has
been a very long time since this barrier (the isthmus) formed.
O Yes, because the Caribbean Panamanian species is not related to any other oysters east of the Isthmus of
Panama, but it is closely related to the Pacific Panamanian species
O Yes, because the two species of Panamanian oysters are most closely related to each other, they are close in
flow
proximity, and the Isthmus of Panama was once not a barrier to gene
O No, because the two species of Panamanian oysters are more closely related to each other than they are to
oysters from North America or South America
O No, because the two species of Panamanian oysters are more closely related to the North American oysters
than they are to South American oysters
Transcribed Image Text:ree to answer the following question. The two species from Panama are separated from one another by the Isthmus of Panama, the narrow land bridge connecting North and South America, which formed approximately 2.5 million years ago. Given the cladogram and the geographic information, is it likely that the Panamanian species arose through allopatric speciation? O No. While the Isthmus of Panama prevents gene flow between the two Panamanian oyster species, it has been a very long time since this barrier (the isthmus) formed. O Yes, because the Caribbean Panamanian species is not related to any other oysters east of the Isthmus of Panama, but it is closely related to the Pacific Panamanian species O Yes, because the two species of Panamanian oysters are most closely related to each other, they are close in flow proximity, and the Isthmus of Panama was once not a barrier to gene O No, because the two species of Panamanian oysters are more closely related to each other than they are to oysters from North America or South America O No, because the two species of Panamanian oysters are more closely related to the North American oysters than they are to South American oysters
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