12. unlike smooth muscle, cardiac muscle is a. responsible for movement of food within the digestive tract. b. found in the wall of hollow parts of the human body. c. connected by gap junctions. d. striated.

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

for 8 am not sure maybe yes?

for 9 if it is asking if the male is more or less it would be less

hope i even just a little : )

i would say it is