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Organisms that comprised reef complexes remained virtually unchanged during the Paleozoic.
Q8: If you were transported back in time
Q10: Fossils of Archaeopteryx are important because they
Q17: _ moraines allow geologists to determine the
Q26: The multicelled fauna of the Neoproterozoic is
Q36: Amphibians likely evolved from the lobe-finned crossopterygians.
Q51: Over time, Earth's rotation rate has slightly
Q56: Slices of ancient oceanic crust composed of
Q59: Thick salt deposits have been explained by
Q64: Mountain building in western North America did
Q68: Mary Anning was widely recognized during her