The anatomy of Archaeopteryx captures two animal characteristics: that of ___________ and ___________.
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Humans (Homo sapiens) are ____.
Humans (Homo sapiens) are ____.
During the __________ period, the largest mass extinction wi…
During the __________ period, the largest mass extinction wiped out 96% of all marine invertebrates and >67% of reptiles and amphibians.
Before the complete break-up of Pangaea, the climate of cont…
Before the complete break-up of Pangaea, the climate of continental interiors was:
Fossils are most commonly found in igneous rocks.
Fossils are most commonly found in igneous rocks.
Petrified wood is an example of a body fossil.
Petrified wood is an example of a body fossil.
The Mississippi River Delta is what type of depositional env…
The Mississippi River Delta is what type of depositional environment?
Reptiles evolved before amphibians.
Reptiles evolved before amphibians.
During the Late Cretaceous, arctic water spread southward ov…
During the Late Cretaceous, arctic water spread southward over North America, forming an inland sea called the:
Rifting between Laurasia and Gondwana caused:
Rifting between Laurasia and Gondwana caused: