Inside the abdomen is the stomach, the heart, and the excretory system where body wastes pass out of the insect.
(Inside the abdomen; is; the stomach, the heart, and the excretory system) (body wastes; pass; out of the insect; L:the excretory system)
Inside the abdomen body wastes
is pass
the stomach, the heart, and the excretory system
out of the insect L:the excretory system