Have them then identify the place in their food chain chart where these seafood sources belong, tracking the food chain backward from human consumer to primary producer.
(these seafood sources; belong; L:their food chain chart) Context(these seafood sources belong,List([66, 94))):(these seafood sources; belong tracking; the food chain backward from human consumer to primary producer)
these seafood sources belong,List([66, 94))
these seafood sources these seafood sources
belong belong tracking
L:their food chain chart
the food chain backward from human consumer to primary producer