摘要: Publisher Summary The process of moulting has been perceived as “resolved” by many invertebrate physiologists. Of consequence, attention given toward the construction a broadly conceived systematic approach to coordinated coupling. This chapter summarizes status various pieces picture. A model for secretion and resorption fluid requires active transport cationic species (potassium) during fluid, an anionic resorption. origin bicarbonate appearing in is integumentary epithelium rather than haemolymph. Resorption occurs via endogenously produced direction haemolymph with compensatory passive into these cells potassium from fluid. Secretion are two separate processes involving either exogenously supplied or ions respective stages elaboration. Specific hormonal involvement changes enzyme activities elaboration, have yet be correlated facets cuticle deposition digestion.