Why did you choose biology? Why not chemistry or physics? Is there something about the utter complexities of life that draw you to this discipline?
Matter of personal taste. I did my undergrad in pure physics because I considered it the most fundamental science (I still do). But I became really fascinated with abiogenesis and evolution in the context of emergent comlpexity, so I've veered towards biophysics.Uhm, interesting, yes, those too could be included under the biology category. But why not unbiological chemistry or unbiological phhysics?
+1For me it's the astounding complexity of biological systems and the keen interest in medicine. We've never come close to creating something as complex and adaptive as an organism and in some respects it's both humbling and inspiring to look at the metabolic pathways in a cell and see how they mindlessly lead to life.