Where does the heat from your body comes from?

What is an animal that lives by preying on other animals

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

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