Because cyanobacteria and other microphytobenthos (MPB)—microscopic organisms inhabiting tidal flats—are consumed by mussels as well as by certain shorebirds and fish, MPB are estuary ecosystems. Decreased MPB abundance, which may be caused by environmental stressors, thus has a direct, negative impact on coastal food webs.
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Verbal·Craft and Structure·Words in Context
mediumWhich choice completes the text with the most logical and precise word or phrase?
A
imperative for
B
emblematic of
C
subordinate to
D
interchangeable with