- 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 157 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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