>Which came first, the Heart, Blood Vessels or Blood? Which ones were "selected for" before the others arrived? How would a random process, uncoordinated through time select for these things and keep them while they're "not useful" until they are? etc etc
Evolutionary biologists have very detailed answers to all of these questions, plus a bunch more that are far more complicated and confounding to laypeople. You can even find some great popular science books that hold your hand and walk you through some of the absolutely mind-boggling ways in which we have found evolution to work. It doesn't require any advanced math courses to wrap your head around if you go at the topic patiently and with an open mind.
The numbers and timescales on which evolution has been operating are astronomical, far too large for a human mind to comprehend in any meaningful sense. Of course it's products are also going to be a challenge to comprehend. Especially if you start forming opinions before you have consulted the experts and put in the hard work of trying to learn how those experts know what they think they know.
Evolutionary biologists have very detailed answers to all of these questions, plus a bunch more that are far more complicated and confounding to laypeople. You can even find some great popular science books that hold your hand and walk you through some of the absolutely mind-boggling ways in which we have found evolution to work. It doesn't require any advanced math courses to wrap your head around if you go at the topic patiently and with an open mind.
The numbers and timescales on which evolution has been operating are astronomical, far too large for a human mind to comprehend in any meaningful sense. Of course it's products are also going to be a challenge to comprehend. Especially if you start forming opinions before you have consulted the experts and put in the hard work of trying to learn how those experts know what they think they know.