The carbon atoms

Frederick Turner,Natural religion,  New Brunswick et Londres, Transaction Publishers, 2011, p. 110.

For instance, the carbon atoms that my body uses to construct its protein and enzyme factories are exactly the same as they were before. I commandeered them by eating them in my asparagus.

Likewise, the coat of tiny sticks and bits of gravel that a caddis-worm construct for itself is part of its body though in itself not strictly alive.