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Raphia Summer 1993 - COTERC · Problem Solving: Concepts and Case Studies 1986,p.84) Among other groups of organisms, birds offer certain advantages as biological monitors. they are

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Page 1: Raphia Summer 1993 - COTERC · Problem Solving: Concepts and Case Studies 1986,p.84) Among other groups of organisms, birds offer certain advantages as biological monitors. they are
Page 2: Raphia Summer 1993 - COTERC · Problem Solving: Concepts and Case Studies 1986,p.84) Among other groups of organisms, birds offer certain advantages as biological monitors. they are
Page 3: Raphia Summer 1993 - COTERC · Problem Solving: Concepts and Case Studies 1986,p.84) Among other groups of organisms, birds offer certain advantages as biological monitors. they are
Page 4: Raphia Summer 1993 - COTERC · Problem Solving: Concepts and Case Studies 1986,p.84) Among other groups of organisms, birds offer certain advantages as biological monitors. they are
Page 5: Raphia Summer 1993 - COTERC · Problem Solving: Concepts and Case Studies 1986,p.84) Among other groups of organisms, birds offer certain advantages as biological monitors. they are
Page 6: Raphia Summer 1993 - COTERC · Problem Solving: Concepts and Case Studies 1986,p.84) Among other groups of organisms, birds offer certain advantages as biological monitors. they are
Page 7: Raphia Summer 1993 - COTERC · Problem Solving: Concepts and Case Studies 1986,p.84) Among other groups of organisms, birds offer certain advantages as biological monitors. they are
Page 8: Raphia Summer 1993 - COTERC · Problem Solving: Concepts and Case Studies 1986,p.84) Among other groups of organisms, birds offer certain advantages as biological monitors. they are
Page 9: Raphia Summer 1993 - COTERC · Problem Solving: Concepts and Case Studies 1986,p.84) Among other groups of organisms, birds offer certain advantages as biological monitors. they are