Primitive reptiles first appeared during the:
A) Cambrian period
B) Ordovician period
C) Carboniferous period
D) Silurian period
E) Devonian period
Correct Answer:
Verified
Q23: The "Age of Amphibians" was the:
A)Permian period
B)Ordovician
Q24: The "Age of Fishes" was the:
A)Devonian period
B)Ordovician
Q25: The three periods of the Mesozoic era
Q26: The Cenozoic era consists of the:
A)Triassic and
Q27: The Primate order arose about:
A)1 million years
Q29: Characteristics shared by primates include:
A)Flat nails instead
Q30: Small animals called thecodonts and therapsids were
Q31: Homo sapiens first appeared during the:
A)Cretaceous period
B)Tertiary
Q32: Placental mammals appeared during the:
A)Triassic period
B)Jurassic period
C)Cretaceous
Q33: The Burgess Shale fossils are from the:
A)Ordovician
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