How can a conceptual model be used to develop a testable hypothesis? Select one: a. Conceptual models cannot be used to develop a testable hypothesis. b. Conceptual models help us see how things are related and how they connect or work together. This helps us develop a hypothesis based on changes in a variable and the corresponding response of another variable. c. Conceptual models are never revised once they are made. d. Conceptual models are not based prior observations and are guesses used to generate a hypothesis.

b. Conceptual models help us see how things are related and how they connect or work together. This helps us develop a hypothesis based on changes in a variable and the corresponding response of another variable.

Explanation:

A conceptual model refers to a vivid representation or conceptualization of the working of a system. Hence conceptual models offer explanations to ideas about systems.

They help to fit all the facts together so that one can make sense of a system. Also, it helps us to understand how changes in one variable affects the other in a system, thereby helping us to formulate a testable hypothesis.

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.