(i) In digestive system - (Mouth, Stomach,Liver, Pancreas, intestine, etc.)
(ii) Skeletal system - (Bones)
(iii) Circulatory system - (Heart, Arteries, Veins , etc.)
(iv) Respiratory system - (Diaphragm, Lungs, Larynx, etc) are some of the organs in an organism.