#Question id: 4975
#Unit 11. Evolution and Behavior
The observation that tusks were limited to males in several species, and were apparently not used in food-gathering, is evidence that the tusks probably
#Question id: 4976
#Unit 11. Evolution and Behavior
Which of these is the most likely explanation for the existence of dicynodont fossils on modern-day Antarctica?
#Question id: 4977
#Unit 11. Evolution and Behavior
There are at least a dozen known species in the extinct genus Lystrosaurus. If each species was suited to a quite different environment, then this relatively large number of species is likely due to
#Question id: 4978
#Unit 11. Evolution and Behavior
The dicynodonts survived the mass extinction that was most closely correlated in time, if not in cause, with
#Question id: 4979
#Unit 11. Evolution and Behavior
The dicynodonts that survived the Permian extinction would initially have had to endure (or escape from) the physical effects of __________, and subsequently, the biological effects of __________.
#Question id: 4980
#Unit 11. Evolution and Behavior
If an increase in dicynodont species diversity (i.e., number of species) occurred soon after the Permian extinction, and if it occurred for the same general reason usually given for the increase in mammalian diversity following the Cretaceous extinction, then it should be attributed to