Further Investigations
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Draft horses (which are heavy, slow,
patient, and strong) and racehorses (which
are lighter, very fast, and skittish) come
from the same original stock thousands of
years ago. How do you think they came to be
so different?
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Read about how bacteria can evolve
to be resistant to antibiotic drugs. Explain
how this process works, and what can be done
slow it down. Here are some sample
references.
http://www.freep.com/news/health/nstaph12_20021112.htm
http://www.fda.gov/fdac/features/795_antibio.html
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Suppose you wanted to breed a
special kind of dog that would be happy and
easy to care for in a city. You start with
about 20 dogs of different breeds, and you
have 50 years to develop your new
"urban hound". What
characteristics would you look for? How
would you proceed with your project?
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MAYBE!! Write down some things you
would like to try that involve making
changes in the rules of this model. Send
them to the Concord Consortium. If the
changes aren't too complicated, someone will
send you a new model following your suggestions.
Copyright 2005 The Concord Consortium, All
rights reserved.
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