What does the following phylogeny of animals suggest?
A) Dorsal-ventral patterning and a single nerve cord may have evolved in three independent lineages.
B) The common ancestor of invertebrates had a single nerve cord.
C) Arthropods have a unique dorsal-ventral pattern.
D) a and b
E) none of the above

Question

What does the following phylogeny of animals suggest? 
A) Dorsal-ventral patterning and a single nerve cord may have evolved in three independent lineages. 
B) The common ancestor of invertebrates had a single nerve cord. 
C) Arthropods have a unique dorsal-ventral pattern. 
D) a and b 
E) none of the above

Quizplus · Accepted Answer

The Answer of What does the following phylogeny of animals suggest? 
A) Dorsal-ventral patterning and a single nerve cord may have evolved in three independent lineages. 
B) The common ancestor of invertebrates had a single nerve cord. 
C) Arthropods have a unique dorsal-ventral pattern. 
D) a and b 
E) none of the above

What Does the Following Phylogeny of Animals Suggest