Assimilation efficiency of herbivores is only 30-70% most plant tissue is not digested by animals and ends up as detritus Two independent food chains ...Source : <a href="http://courses.nres.uiuc.edu/nres219/lectures/17%20-%20Nutrient%20Cycling.pptLesson">http://courses.nres.uiuc.edu/nres219/lectures/17%20-%20Nutrient%20Cycling.pptLesson</a> Objectives: (Part II) - Science Buzz - home PPTPresentation Summary : Assimilation: Liver functions in Digestion & Assimilation Production of bile.