[Solved] This microorganism can be observed with: A)the naked eye B)a light microscope C)a scanning electron microscope D)B and C are correct Internal Validity: The degree to which a study convincingly demonstrates a cause-and-effect relationship between variables, free from confounding factors. Explore: To investigate or examine a topic in detail in order to discover facts, information, or insights. Methodological Eclecticism: The approach of using a variety of methods or techniques from different research methodologies in the study or analysis of subjects. Synergistically Integrating: The process of combining multiple components or systems in a way that they work together more effectively than they would individually, resulting in a greater overall effect.