Ihave a question about my schooling. i'm thinking about a career in science however, i'm not sure what classes i would need or how to go about changing my major again. i'm very much interested in stuff such as the human genome project and stem cell research. can i get some guidance?

Some technological solutions to problems like global warming meet the specific needs and situations of local communities. an example from india involves converting the solid waste from cattle into clean-burning fuel for cooking. this reduces the amount of greenhouse gases, specifically methane and carbon dioxide, released into the environment from wood fires. when evaluating the feasibility of implementing this solution, computer models are used to weigh costs against benefits. what factor is least likely to impact the decision on adopting this technology?

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna