- Compare the embryos of chickens, humans and fish, and describe in detail how pharyngeal arches show a shared evolutionary past?
- Explain how reproductive barriers result in the development of different species.
- Explain what is meant by the statement, evolution does not have a goal.
- Explain why you would or would not expect evolution to proceed more quickly in a rapidly changing environment. Be sure to address all five agents of evolutionary change in your response.
- Explain, using the illustrations on page 155 of your text, why penicillin, once a widely used and effective antibiotic, is now no longer effective against penicillin-resistant bacteria.
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