Which statement is correct? A. Mallards don’t have a basic plumage. B. Mallards don’t have an alternate plumage. C. Canada geese don’t have a basic plumage. D. Canada geese don’t have an alternate plumage.

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

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

18. which statement about cancer is true?