Section 2: Animal Body Plans Crossword

Describes the similarity or balance among body structures of organisms
Type of symmetry that can be divided through a central axis into roughly equal halves
Type of symmetry that can be divided into mirror image halves only along one plane through the central axis
Having no symmetry
Head end of an animal with bilateral symmetry
Tail end of an animal with bilateral symmetry
The tendancy to concentrate nervous tissue and sensory organs at the anterior end of a bilateral animal
The backside of an animal with bilateral symmetry
The underside or belly of an animal with bilateral symmetry
A fluid fillid cavity in an organism with bilateral symmetry
A fluid filled body cavity that develops between the mesoderm and the endoderm
Animals that do not have a coelom
The mouth develops from the first opening in the gastrula in organisms that are this
The anus develops from the first opening in the gastrula in organisms that are this
What kind of animals can be "put together" from a succession of similar parts
The first anatomical feature to indicate a major change in body plan was the development of this
Anatomical features in an animals' ____ ____ mark the branching points on the evolutionary tree
The ____ of animals is represented by branches in the evolutionary tree