Which of the following organ systems perform interrelated functions within the human body?
i. excretory and digestive
ii. circulatory and respiratory
iii. reproductive and endocrine
iv. skeletal and muscular

halogen, any of the six nonmetallic elements that constitute group 17 (group viia) of the periodic table. the halogen elements are fluorine (f), chlorine (cl), bromine (br), iodine (i), astatine (at), and tennessine (ts).

other information encoded in your genes might distinguish you from the others in the group

answertheory;