Biology is the study of complicated things that give the appearance of having been designed. To sum up, evolution is called fact, but you can t have the fact of evolution unless you have the fact of abiogenesis. You must prove that life forms change from simple to complex over time. If change of this sort occurred, you would see evidence of it in the fossil record. In other words, you should find large numbers of transitional forms.
Evolutionists can point to only a few highly questionable examples.
But to make their point, they need a large number of transitional forms. These do not exist. Again, the important thing to note is this. When Christians argue for intelligent design, they point to the evidence. Perhaps we are mistaken, but we are not appealing to blind faith.