Four different phylogenetic trees of a group of salamanders have been proposed. Trees A and B each require 19 homoplasies, but tree A requires 16 synapomorphies, and tree B requires 15 synapomorphies. Tree C requires 15 homoplasies and 18 synapomorphies. Finally, tree D requires 22 homoplasies and 9 synapomorphies. According to the principle of parsimony, which tree or trees is/are the best?

Astudent completed a lab report. which correctly describes the difference between the “question” and “hypothesis” sections of her report? “question” states what she is asking, and “hypothesis” states the result of her experiment. “question” states what she is asking, and “hypothesis” states what she thinks the answer to that question is in “if . . then . . because” format. “question” describes what she is trying to find out, and "hypothesis" states the procedures and methods of data collection. “question” describes what she is trying to find out, and “hypothesis” states any additional information or prior knowledge about the question.