Which of the following best explains why what we know about cells is called a theory and not a law? (5 points) a We do not have enough evidence yet to call cell theory a law. b We have not reviewed cell behavior enough yet to call it a law. c Cell theory is still changing but may eventually become a law. d Cell theory explains cell behavior where a law would describe it.

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.