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If Escherichia coli is cultured in broth containing both glucose and lactose, it A. Uses glucose preferentially until the supply is exhausted, then uses lactose B. Uses lactose preferentially until the supply is exhausted, then uses glucose C. Uses glucose and lactose simultaneously D. Uses...

Competitive advantages for cyanobacteria in the aquatic environment include A. The ability of many to fix nitrogen B. The production of toxins to resist predation C. The production of hydroxamates to bind iron D. All of the choices