Chitin (insect exoskeletons), keratin (skin, hair, horn, feathers), cellulose (most plant debris) and lignin (wood), nourish many fungi, though cellulose.
By Serena (Xu Ruijia) Digestive system The series of the tube-like organs that convert our meals into body fuels. The breakdown of large insoluble.
Phylum Arthropoda The Arthropods Arthro = jointed, Pod = foot Source.
Pathophysiology 3
Digestive Enzymes
