Genetic engineering can be used to create more productive strains of farm animals. by adding genes to an animal’s dna, the animal can be made to produce milk or meat containing vital nutrients that would not be found naturally in those products. this provides a greater amount of nutrients per serving of milk or meat. what are some possible impacts (positive and negative) of this type of genetic engineering on individuals, society, and the environment?

Over the past 60 years, many amphibian species have experienced significant population declines and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. chytridiomycosis is a fungal disease first identified in 1998 as a cause of massive amphibian deaths. in some severely impacted populations, a few individuals have survived, perhaps because of some natural resistance. if these resistant individuals continue to survive and prosper, new resistant populations might emerge. this would be an example of the founder effect artificial selection genetic drift natural selection sexual selection

What organ systems are working to you cool down after a workout?

About __ of the mass of the cell is water