Whether creation is mingled with works of nature and art?

Objections

Objection 1 : It would seem that creation is mingled in works of nature and art. For in every operation of nature and art some form is produced. But it is not produced from anything, since matter has no part in it. Therefore it is produced from nothing; and thus in every operation of nature and art there is creation.
Objection 2 : Further, the effect is not more powerful than its cause. But in natural things the only agent is the accidental form, which is an active or a passive form. Therefore the substantial form is not produced by the operation of nature; and therefore it must be produced by creation.
Objection 3 : Further, in nature like begets like. But some things are found generated in nature by a thing unlike to them; as is evident in animals generated through putrefaction. Therefore the form of these is not from nature, but by creation; and the same reason applies to other things.
Objection 4 : Further, what is not created, is not a creature. If therefore in nature's productions there were not creation, it would follow that nature's productions are not creatures; which is heretical.