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Most animals reproduce sexually.  

Animals that have a true coelom (fully lined internal body cavity) are called ________. 

A cnidarian that has a stalk-like body plan (like Hydra) is called a __________. 

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?