17. power is generated by converting the kinetic energy of falling water to electricity. a. hydrophobic b. hydroelectric c. geothermal d. photovoltaic

Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs

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

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?