Tennessee Science Grade 7Unit 2:
Life Science: Reproduction and HeredityReal World Science (STEM) LinksSociety:http://www.nlm.nih.gov/medlineplus/kneereplacement.html
http://www.vh.org/adult/patient/orthopaedics/kneereplacement/index.html
http://www.niams.nih.gov/hi/topics/hip/hiprepqa.htm
http://www.geneticengineering.org/chemis/Chemis-NucleicAcid/DNA.htm
http://www.sierraclub.org/biotech/ Science and Historywww.nature.com
http://en.wikipedia.org/wiki/Parthenogenesis
http://en.wikipedia.org/wiki/Genetically_modified_food
http://carroll1.cc.edu/~fys/ppp/pros.htm  | 
