Which of the following is accurate in describing the placement and classification of iodine? a. iodine is located in period 5, group 17 and is classified as a nonmetal. b. iodine is located in period 7, group 6 and is classified as a metal. c. iodine is located in period 17, group 5 and is classified as a nonmetal. d. iodine is located in period 6, group 7 and is classified as a metal.

What type of competition exsist between two species. turtles and fish

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.

Name the tissue types that form the wall of each organ in questions 7-10