Exam Question #1

It's that time of year again. My students have a mid-tern test on Feb. 28th so I giving out a list of questions that will be on the exam. Here's one.

Here are two different trees depicting the evolutionary relationship of various classes of animals. Which one is better? Why?

The question is based on the following assigned paper:

Meisel, R.P. (2010) Teaching Tree-Thinking to Undergraduate Biology Students. Evo. Edu. Outreach 3:621-628. [doi: 10.1007/s12052-010-0254-9]

---

[Image Credit: The tree on the left is from Campbell Biology Chapter 32 Activities Quiz (2002)]