How did ichthyosaurs and plesiosaurs differ?
A) Ichthyosaurs were able to travel onto the land.
B) Ichthyosaur females probably gave birth to live young.
C) Plesiosaur females probably gave birth to live young.
D) Plesiosaurs were adapted only to the aquatic environment.
E) Ichthyosaurs ate fish and plesiosaurs did not.
Correct Answer:
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Q25: Which characteristic sets dinosaurs apart from reptiles?
A)teeth
Q26: All modern reptiles are _.
A)ectotherms
B)endotherms
C)echinotherms
D)unitherms
E)antitherms
Q27: During the Mesozoic, climatic variation on Earth
Q28: Geologic evidence indicates that more than 25%
Q29: Ammonites of the Mesozoic were characterized by
Q31: The Cretaceous Interior Seaway regressed during the
Q32: Some dinosaur bones have numerous passageways for
Q33: The _ orogeny consisted of a series
Q34: Dome-headed dinosaurs (pachycephalosaurs)are only known to us
Q35: Continental growth _.
A)occurs faster at passive margins
B)occurs
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