Research a process or a machine which changes mechanical energy into electrical energy. Create a document to show the energy conversion. You may use this chart. Be sure to show all conversions and include labels.
Choose another type of energy conversion from the list below. Repeat steps 1 and 2.
electrical to mechanical
chemical to mechanical
chemical to heat
solar to chemical

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?