One thing that is often overlooked when discussing biology is: information.
Biology IS information. Without the blueprint of information (i.e.: DNA) and tens of thousands of little micro machines doing specific jobs there would be no giraffes, humans or crabs. There wouldn’t be any dandilions, roses or even bacteria. All of these are made up of the same materials that we find in the crust of the earth. Dirt, rocks and mud have all the same molecules as me and you. We could build an elephant with the ground under our houses.
But therein lies the rub for atheists. We would have to intelligently BUILD biological life out of the materials around and under us. Because without intelligence, machines are not built. Planes and tanks and bicycles are also made from materials we find on — or in — the earth. But bikes don’t pop out of the ground magically. Only as the result of human intelligence and effort.
“But, there’s your error, plants DO sprout out of the ground…”
No, they don’t.
If you put a seed in the ground, the cells of the seedling get to work. Micro machines grab ingredients from the surroundings and build additional cells according to the blueprint of information already in the seed. In short, you need a of batch of machines and a ton of information in order to grow a plant. It does not pop out of dirt.
Neither do bugs or llamas.
Every plant or animal or germ we know comes from another of its own kind. And invariably, all of these biological “systems” are run by information, machines that can read information, machines that build or carry things and structures that house all of these in a carefully chemically balanced fluid.
Even children understand that information comes from minds not mud.
Therefore, when it comes to life on earth, information — for the atheist — is a problem.