Multiple Choice
Lungfishes were important shallow-water predators during the Devonian period, but their diversity has declined significantly, most likely as a result of
A) a decrease in atmospheric oxygen levels.
B) the evolution and radiation of tetrapods.
C) the loss of jaws with teeth.
D) the increase in predatory bony fish.
E) an increase in freshwater habitats.
Correct Answer:

Verified
Correct Answer:
Verified
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