Complex sentence: It is comprised of various internal rigid support rods (e.g., the tentorium), the membranous tracheae, and the anterior and posterior portions of the digestive tract; all of these are shed along with the exoskeleton during ecdysis (moulting).
Split into simpler sentences: It is comprised of various internal rigid support rods (e.g., the tentorium), the membranous tracheae and the anterior and posterior portions of the digestive tract. All of these are shed, along with the exoskeleton proper, during ecdysis (moulting).