Simpson debated the issue of continental drift with DuToit, arguing that the dis
ID: 20024 • Letter: S
Question
Simpson debated the issue of continental drift with DuToit, arguing that the distribution of animals can be explained by long distance dispersal and the subsequent speciation event occurred because of species crossing over land bridges. Both arguments were debated through controversial biogeographic hypotheses.a.
Simpson was justifying his stance through the idea of vicariance, DuToit was justifying his stance through the idea of dispersal.
b.
DuToit was justifying his stance through the idea of vicariance, Simpson was justifying his stance through the idea of dispersal.
c.
Simpson argued that land bridges have just been under water for long periods of time while DuToit argued that what appeared to be speciation was just convergent evolution.
d.
DuToit argued that as continents drifted apart, speciation occurred making species on different continents look alike and Simpson argued that the stratigraphic beds were beds interconnected South America and South Africa.
e. DuToit found evidence of the Great American Interchange in mammal migration to support continental drift, Simpson found that the Isthmus of Panama connected North and South America only 5mya, refuting DuToit’s claim.
Explanation / Answer
a. Simpson was justifying his stance through the idea of vicariance, DuToit was justifying his stance through the idea of dispersal. would be nice if you put up the argument for dutoit as well. With this info i think it is probalby A