Stagnation of mid-Cretaceous oceans resulted in
A) the deposition of organic-rich, dark muds in deep oceans and shallow shelves.
B) cold waters sinking and spreading along the seafloor toward the equator.
C) the development of tropical rudist reefs around the Tethys Seaway.
D) the end of a greenhouse world and the onset of a Cretaceous ice age.
Correct Answer:
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Q2: _ originated during Jurassic, but did not
Q3: _ were all herbivores.
A) Boring snails
B) Horned
Q4: With the survival of one unknown taxon
Q5: By Late Cretaceous, only _ and _,
Q6: The decline of brachiopods and stalked crinoids,
Q8: Cretaceous angiosperms, such as _, tended to
Q9: Endothermy in mammals requires that they have
A)
Q10: During Cretaceous, planktonic _ diversified greatly for
Q11: The evolutionary step that allowed flowering plants
Q12: Adaptive radiations of these two groups altered
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