Dear Biology: This Is How My Layperson Brain Works

Photo Courtesy of Wikipedia

I am a layperson. I am a Communications undergrad with an MBA. I am no Science major. What on earth is this photo supposed to mean???

We've got only one week left before our Philippine NMAT examination in Los Angeles. I'm obviously reviewing for the Biology subtest. It's the first step in hopefully becoming a doctor one day and doing medical missions in the Asia-Pacific region.