During Cretaceous, the Birds Were More Like to the __________

Sea level stood perhaps as high throughout __________ as at any other time during Phanerozoic. A) all of Cretaceous B) Early Cretaceous C) mid-Cretaceous D) Late Cretaceous

Among the changes listed below, select the Cretaceous change in Earth that did NOT occur along with the other three. A) Mass extinction of life that eliminated large numbers of plant and animal species B) Long interval of reversed magnetic field and no reversals of polarity C) Change from high to low magnesium-calcium ratio in seawater D) Global high sea level that inundated large low-lying areas on the continents