Which of these conditions made it beneficial for aquatic plants to move onto land?
a. bright sunlight, abundant co2, and lack of competitors
b. filtered sunlight, abundant o2, and higher pathogens
c. less water, abundant nitrogen, and no pathogens

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