While studying the slides made from different parts of the body of the frog, the cells appear different. Why?

The influenza virus cause the flu, but not other diseases. why?

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?

What are some natural processes that represent physical and chemical changes?