Biology E or Biology M SAT Subject Test?

I’m planning to take the Biology SAT subject test either in May or June. I have been trying to decide between taking Biology E and Biology M. Can anyone clear up the difference, give experiences, or have any suggestions?

Thanks in advance!

I have taken Biology M (Molecular). It is primarily focused on biochemistry and biochemical process, such as photosynthesis and cellular respiration. Personally, I thought molecular would be easier, because ecology was a lot harder to grasp, in terms of concepts. But the main thing is evaluating your strengths and weaknesses in terms of either ecological and molecular biology and then figuring out which test suits you more. For me, it was molecular biology. For you? Only you probably know which test you prefer. Anyway, good luck on the subject test.

@Alumon Thanks! I think that I am leaning toward Biology M, because molecular biology is easier for me.