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The first prokaryotic organisms evolved during the _______ eon.
Q15: During which period did Pangaea begin to
Q53: Which of the following could be most
Q68: Which statement about oxygen levels on Earth
Q73: Which protist group includes large multinucleate terrestrial
Q81: The principles of stratigraphy are often used
Q85: Consider the case of in vitro evolution
Q147: At very small population densities, local extinctions
Q164: It might be argued that humans and
Q172: The antennae of male moths can only
Q175: Genomes consist of<br>A) genes only.<br>B) genes and