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Many sharks have internal fertilization of their eggs.  

Based on DNA, _______________ are the closest relatives to mollusks.  

The protective gill cover that is found in bony fish is called the _______________. 

Most animals have ______________ symmetry.  

An organism that can extrude their entire digestive system when startled is a 

Which of the following is the best definition of an enumerated power?

Which event was most influential in triggering the move from dual federalism to cooperative federalism and a much more active federal government?

Why were attempts by Congress to regulate child labor and factory conditions in local workplaces struck down by the Supreme Court as unconstitutional in the late nineteenth century (late 1800s)?  Note:  FDR and Congress, with New Deal legislation, successfully created laws which prohibited child labor and improved safety conditions

The American population 

The Land Ordinance of 1785 was significant because it