Like typical reptiles which shed their skins the 'waste' is excreted back through the skin.
(typical reptiles; shed; their skins) Context(typical reptiles shed,List([5, 32))):(the 'waste; is excreted; back through the skin)
typical reptiles shed,List([5, 32))
typical reptiles the 'waste
shed is excreted
their skins
back through the skin