Q.1
What is one reason why the plesiosaur remained in the museum basement for so many years?
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Scientists had no idea that it was an interesting specimen
removing the fossils from the plaster is a slow, expensive process
people figured they knew all they needed to know about the plesiosaurs
the specimen had been mis-classified when it reached the Los Angeles Museum
Q.2
What is the best evidence that the fetus was not fully developed?
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It was quite incomplete
its stomach was empty
The fossil was small and the skull bones were soft and not fully hardened
Q.3
What is one reason why paleontologists long suspected that plesiosaurs may have given live birth?
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no living reptile has live birth
no dinosaur has live birth
its skeleton was unsuited to sitting on nest full of eggs
their contemporaries, the mososaurs, were known to have live birth
Q.4
Was there any suggestion that a mother plesiosaur would care for its young?
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yes, because the mother bore just one young at a time, it would make sense to care for it
yes; the plesiosaur fossils were located in a nest
no; fossils show structure, not behavior, and there is no reason to infer maternal behavior based on the evidence at hand
no; only mammals care for their young
Q.5
True or false: We now know that plesiosaurs nursed their young.
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True
False