Which of the following correctly characterizes the phylum Rotifera?

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#Question id: 4976

#11. Evolution and Behavior

Which of these is the most likely explanation for the existence of dicynodont fossils on modern-day Antarctica?

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#Question id: 4977

#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

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#Question id: 4978

#11. Evolution and Behavior

The dicynodonts survived the mass extinction that was most closely correlated in time, if not in cause, with

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#Question id: 5012

#11. Evolution and Behavior

A	Silurian	I	Seed plants appear
B	Devonian	II	Gymnosperms dominant
C	Carboniferous	III	Invasion of land by primitive land plants
D	Jurassic	IV	first reptiles

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#Question id: 5014

#11. Evolution and Behavior

 Following geological time period and major evolutionary event?

I. Devonian                            A. Gymnosperms dominant

II. Jurassic                               B. Amphibians diversify; first reptiles

III. Carboniferous                  C. Mammals appear

IV. Triassic                           D. Seed plants appear

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#Question id: 5015

#11. Evolution and Behavior

 During which of the following largest mass extinction recorded in the history of life on Earth.