Research on Champsocephalus gunnari and other icefishes of the Teleostei class has shown that their hearts are pale due to low levels of myoglobin expression, which was once thought to be related to their polar habitats. Recently, researchers have found that some tropical teleost species (such as Piaractus brachypomus) also have pale hearts, raising the possibility that myoglobin deficiency in teleosts could be __________ habitat.
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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
mediated by
B
obscured by
C
irrespective of
D
predictive of