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. If sea levels rise and the Isthmus of Panama is submerged, allowing the Pacific and Caribbean species to expand their ranges until they overlap, will there be gene flow between the Pacific and Caribbean species currently living on either side of the isthmus? O No, because these species have been separated long enough that they are now different species, incapable of reproducing and having viable offspring. O Yes, because oysters don't have any reproductive behaviors or mate choice, so there will no longer be any barriers to their hybridization and producing viable offspring.
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. If sea levels rise and the Isthmus of Panama is submerged, allowing the Pacific and Caribbean species to expand their ranges until they overlap, will there be gene flow between the Pacific and Caribbean species currently living on either side of the isthmus? O No, because these species have been separated long enough that they are now different species, incapable of reproducing and having viable offspring. O Yes, because oysters don't have any reproductive behaviors or mate choice, so there will no longer be any barriers to their hybridization and producing viable offspring.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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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.
If sea levels rise and the Isthmus of Panama is submerged, allowing the Pacific and
Caribbean species to expand their ranges until they overlap, will there be gene flow
between the Pacific and Caribbean species currently living on either side of the
isthmus?
O No, because these species have been separated long enough that they are now different species, incapable
of reproducing and having viable offspring.
O Yes, because oysters don't have any reproductive behaviors or mate choice, so there will no longer be any
barriers to their hybridization and producing viable offspring.
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