Topics: fish, Ostracoderm, Conodont, Lamprey, Petromyzontiformes, Hagfish, Myxini, Lamprey, Petromyzontiformes, jawed fish, Placodermi, acanthodia, chondrichthyes

Topics: Oreochromis niloticus, Clarias gariepinus

Topics: Chordate, Vertebrate evolution, Fish, Amphibian, Reptile, Bird, Mammal

Topics: fish, Placoderm, Acanthodian, Coelacanth, chondrichthyes, holocephali, elasmobranchs, teleost

Topics: Echinoderms, Hemichordates, Chordates, Salp, Doliolum, Amphioxus, Protochordata, Hemichordata, Enteropneusta, Pterobranchia, Subphylum Urochordata, larvacea, Ascidiacea, Ciona, Thaliacea

Topics: Hemichordata, hemichordate, Urochordata, tunuicates, Enteropneusta, Pterobranchia

Topics: Nutrient requirement, nutrient, feeding, digestion, vertebrate gut

Topics: Feeding Mechanism, feeder, Filter feeder, Deposit feeder, Fluid feeder, Carnivore, Herbivore, Digestion, Cellulose digestion, Food Processing

Topics: Intracellular Digestion, Extracellular Digestion, Digestion, Oral Cavity, Pharynx, Esophagus, Stomach, Small Intestine, Absorption of Nutrient, Large Intestine

Topics: cellular respiration, Glycolysis, Glucose, Kreb’s Cycle, acetyl CoA, pyruvic acid, Hydrolysis, Fat metabolism