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Biology 9 Online
jabez177 (jabez177):

Over time staph bacteria have become resistant to the antibiotic penicillin. Which process explains how penicillin resistance developed? A. speciation B. cooperation C. natural selection D. extinction of a species

jabez177 (jabez177):

@GeniousCreation

jabez177 (jabez177):

Is C the answer?

OpenStudy (anonymous):

Nope. D is.

OpenStudy (anonymous):

@jabez177 .

jabez177 (jabez177):

Okay.

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