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During which period did mammals first appear? a. Pleistocene b. Carboniferous c. Cretaceous d. Jurassic
During JURASSIC period the first true mammals appear.
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Asked 12/1/2014 11:33:54 AM
Updated 2/6/2015 2:30:43 PM
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During JURASSIC period the first true mammals appear.

Added 2/6/2015 2:30:43 PM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [2/6/2015 2:38:11 PM]
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Which of the following deserts is characterized by moderately warm to cool temperatures? a. arid b. semi-arid c. coastal d. cold
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Updated 12/29/2014 10:05:16 AM
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Coastal deserts is characterized by moderately warm to cool temperatures.

Added 12/29/2014 10:05:16 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [12/29/2014 12:49:56 PM]
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