Which statement best describes comparative and descriptive investigations? They both include a question, procedure and conclusion. They both include a hypothesis. They both require a specified control group. They both use independent and dependent variables. Which statement best describes comparative and descriptive investigations? They both include a question, procedure and conclusion. They both include a hypothesis. They both require a specified control group. They both use independent and dependent variables. Which statement best describes comparative and descriptive investigations? They both include a question, procedure and conclusion. They both include a hypothesis. They both require a specified control group. They both use independent and dependent variables. Which statement best describes comparative and descriptive investigations? They both include a question, procedure and conclusion. They both include a hypothesis. They both require a specified control group. They both use independent and dependent variables. Which statement best describes comparative and descriptive investigations? They both include a question, procedure and conclusion. They both include a hypothesis. They both require a specified control group. They both use independent and dependent variables. Which statement best describes comparative and descriptive investigations? They both include a question, procedure and conclusion. They both include a hypothesis. They both require a specified control group. They both use independent and dependent variables.