I did first year in Life Sci, and I took Kin 1Y03/1YY3 as my electives. It was a really interesting course, very minimal workload. It requires memorization, though, but I'm terrible at memorizing stuff and I still did well on it. It's great if you're interested in the human body and how it works. We also had some pretty cool labs.
What areas are you interested in? Good electives are ones that interest you
Lots of people say microecon and macroecon are pretty easy...personally, you couldn't pay me enough to take an econ course!!! But if you like it, they're supposed to be pretty easy electives.