30-A2.2sts 

explain that science and technology have both intended and unintended consequences for humans and the environment (SEC3)[ICT F2-4.8][ICT F3-4.1];  e.g. • evaluate the use of biotechnology to solve practical problems (hormone synthesis for diabetes mellitus, dwarfism, milk yield in cows)    •evaluate the use of hormone therapy in the treatment of humans (growth hormone and aging, anabolic steroids and human performance)      • explain the relationship between pigment deposition within skin cells and ultraviolet light as influenced by stratospheric ozone. )