AP Biology Ch 44 Osmoregulation and Excretion
marine animals
All osmoconformers are __________ __________
osmoregulators
Many marine vertebrates and some marine invertebrates are ____________
stenohaline
Most animals, whether osmoconformers or osmoregulators, cannot tolerate substantial changes in external molarity and are said to be ____________.
osmoconfomers
Most marine invertebrates are __________
transport epithelium
a layer or layers of specialized epithelial cells that regulate solute movements
osmoregulator
an animal that must adjust its internal osmolarity, since its body fluids are not isoosmotic with the outside environment.
osmoconformer
an animal which does not actively adjust its internal osmolarity.
euryhaline
includes certain osmoconformers and osmoregulators -can survive large fluctuations in external osmolarity
osmolarity
osmotic pressure -total solute concentration expressed as molarity, or moles of solute per liter of solution
drink
sharks do not ________
body fluid (blood, coelomic fluid, hemolymph)> filtration> filtrate> reabsorption> secretion> urine> excretion
summarize the steps of an excretory system