Molecular Studies Have Changed Many of the Phylogenetic Relationships Previously

Multiple Choice

Molecular studies have changed many of the phylogenetic relationships previously identified by morphological studies. These changes indicate that ________.

A) molecular and morphological studies rarely agree
B) molecular studies add additional information to morphological studies and improve our understanding of evolutionary history
C) molecular studies are less reliable than morphological studies
D) molecular studies are extremely time consuming and expensive and really don't add additional information to our understanding of evolutionary history