Which detail is given in the chapter about "already studied about organ" in Digestive And Excretory System?
You have already studied about organ systems of the human body in the previous science classes.
○ Organ Systems of Human Body Aggregates of cells constitute a tissue.
○ Muscle contraction uses up energy, which comes from food.
○ Indicate what physical activities they undertake regularly.
Show explanation
This matches the chapter's stated information about "already studied about organ". — Examisthan.com