Oh please.
That's such a ridiculous claim to make. What, like LASERS (yes, machines invented by man) imitate some natural process inside man?!
You Evolutionists are a RIOT!
Nuclear fusion? Nuclear fission? CD-ROMs?! Hard drives?! Wheels?! Zippers?! Asphalt layers?! Apollo rockets?!
Darwin must be proud of his students like you. < /MOCKING >
This kind of thinking makes me think of two blood cells arguing about whether the iron they are carrying around is alive or not.
In the I Ching there is a line about seeing the world through a crack in the door, like a woman peering at world through the door in her house. That's what this reminds me of. This discussion has already gotten tiresome, rationality and deep thought not being strong points for creationists.
That said, I agree with you that imitation is the wrong word here. To imitate something implies that you already know about the thing you want to imitate. People often come up with techniques found in nature because both people and nature occupy the same universe that works the same way for everybody.