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