Ineed some grading a marine biology exam, i'd really appreciate any assistance i can get! you so much!

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

9. the history of life on earth is recorded in

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm