Which of the following describes a properly controlled experiment

The production of cells during mitosis into specialized function is recombination or differentiation

Identify the composition of oceanic and continental crystal rocks. in a model of earth’s interior, where would these rocks appear?

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