I was like "oh is it that simple?", then I noticed that suddenly I spent almost an hour to do a "quick review to rate the game".
Honestly, it's great. From the satisfying sounds (and scary glass breaking when you mess up) to the way the organisms multiply and even a tutorial!
There's not much you should improve over this regarding the main gameplay (apart from adding even more organisms with special features maybe), this would really be a nice mobile (but even desktop) game! Maybe my only nitpick is how you must do calculations to find out how many replications to wait until you maxed out the space and can sell the cure, maybe add an easy mode for who sucks in maths :)