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36. Charles Darwin argued that most speciation events (origin of a new species) are characterized by: A. gradual change (over millions of years/generations, or more), mostly by cladogenesis B. rapid change (over thousands of years/generations, or less), mostly by cladogenesis C. gradual change (over millions of years/generations, or more), mostly by anagenesis D. rapid change (over thousands of years/generations, or less), mostly by anagenesis E. all of the above are equally likely
32. The dominant terrestrial predators during the Cretaceous Period (towards the end of the late Mesozoic Era) were characterized by all of the following traits except: A. a partial four-chambered heart with an incomplete interventricular septum B. two pairs of post-orbital fenestrae in the skull C. jaw muscles attached to an extendable mandible D. reproduction by means of an amniote egg E. one pair of post-orbital fenestrae in the skull