Here's why Creatards might be right

[Esquilax]

what would account for different species of living things then ? why monkeys and humans and plants and worms and birds under this theory why wouldnt every living thing existing on the same earth under the same conditions be exactly the same and have the same properties ?

Well, A: because they didn't all live under the same conditions, since there's a huge amount of environmental variance on the earth, and B: unguided mutations are the mechanism behind evolution, and no two beings will ever mutate exactly the same way. It's the sort of question that's really simple to answer if you had any interest in the subject beyond disagreeing with it out of hand.