"What causes molecular biological systems to seek survival?" ?

That's an easy one.

It's not about "survival", it's about *REPRODUCTION*. (That is why the phrase "survival of the fittest" is an oversimplification of how natural selection works.)

There are all sorts of chemical structures possible in nature due to the laws of physics and chemistry. Some of these are able to support replication, and others are not. But the ones that are able to support replication will, by definition, tend to produce copies of themselves.

Thus replicators produce more replicators.

If replication were "perfect" (error-free) then these replicators would remain simple. But they are not "perfect" ... there are errors in replication. Some of these errors make the new replicator worse at replication, and occasionally some errors make them better. Those errors that produce slightly *better* replication, tend to replicate more of the same.

Thus *better* replicators produce *better* replicators.

That's it. There does not have to be any "will" attributed to these replicators ... no more than an apple has "will" when it falls toward the ground, or water molecules have "will" when they form into a snowflake. In all three cases they are just doing what the laws of physics dictate. They have no "choice", and since "will" is a response to choice (the ability to decide to do otherwise), there is no "will" evident here. (That's not to say that these very laws of physics do not represent some sort of "will" by the Creator of these laws ... if you believe in a Creator ... only that this "will" is not evident in the behavior of things that follow these laws.)

Survival emerges as a side-effect of better and better replication. The longer a replicator "survives", the more time it has to make copies of itself. So part of the strive towards better and better replication, are structures and behaviors that lead to better and better survival. It's a side-effect.

So better survivors tend to produce better survivors.

Summary: We are the descendants of a long line of the best replicators (and thus survivors) of each generation. The only thing in common in all of the members of this line is the tendency to replicate (and survive). If you want to call that "will" in human beings (because we have the capacity to make decisions that affect that replication or survival), that's fine ... but it's hard to ascribe "will" to an earthworm, or an orchid, or a yeast cell that is also just trying to replicate.

"Will" is really only a metaphor to make it easier to understand. Obviously, a single bacterium doesn't have a rational thought process to enable it to "will" anything. The answer is in genetics. Genes that cause themselves to be reproduced more than others will thus become more common, until the sole purpose of genes becomes to replicate themselves. It is a cycle we know as natural selection.

Good question!

In my view it is pure innate nature put in place by the Creator of all. This desire to survive is what causes the new born to suck in the first breath. I see that one can not make, form, or create something without placing some of his/her/ or its own innate nature on it, in it, or whatever as a sign of the source.

To me this is one of the revealed facts that is from the pure nature of the God I see in the Bible. He desires that all will seek eternal survival with him.

If they reproduce, there are more to reproduce. Those that reproduce better outnumber and overwhelm those that are slower. It is simply an inevitable consequence of the ability to replicate.