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

Which of these is an invertebrate chordate? 

Animals are ___________ and ________________. 

Humans are found in Order ____________________. 

The cells of sponges are called ____________________. 

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

The kangaroo and koala are examples of ____________. 

Two traits found only in mammals are hair and lungs.  

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

The phylum that is characterized by segmentation of the body and jointed appendages is ____________________.