From Fish to Philosopher: The Story of Our Internal Environment

activity adaptation ammonia amniotic Amphibia anatomical animals apes areas armor Biological birds bladder blood body fluids brain brates Cambrian capillaries cells cent coelacanth coelomic concentration consciousness cortex crossopterygian desert developed Devonian distal diuretic drink sea water eggs elasmo elasmobranchs estivation eurypterids evolution evolved filtration rate fins forms fossil record fresh water fresh-water frog gills gland glomerular glomerular filtration glomeruli GRAFFLIN habitat habitus increased internal environment invertebrates Jurassic kidney living lungfish mammalian mammals marine fishes marine teleosts mechanism membrane mountain muscles mutation natural selection nephron nerve nervous system nitrogen Ordovician organ ostracoderms ovoviviparous Paleozoic Pennsylvanian period Permian pituitary plasma present primitive probably protein protovertebrate quantity reabsorbed reabsorption renal function renal physiology renal tubules reptiles reptilian Romer salt and water salt water secretion segment sharks Silurian skin sodium chloride species stem structure substances survive teleosts temperature terrestrial tion urea uric acid urinary urine urine flow vertebrates water balance