Exam 26: Maintaining the Internal Environment

The process of removing and ridding the body of toxic nitrogenous wastes from the blood is called ______________.

One major function of the kidneys is water conservation.What portion of the nephrons is responsible for that function when water is lacking in the diet?

In flatworms,protonephridia branch throughout the body into bulblike _______________.

Mammals and amphibians are the only vertebrates that produce urine that is hypertonic to their body fluids.

________________ is the final product to be expelled from the body after the kidney has reabsorbed needed nutrients and water.

The production of hypertonic urine in mammals and birds is accomplished by the:

Marine mammals,like whales,do not drink seawater.

Which simple excretory system is present in the flatworm?

The regulation of the body's osmotic composition is called __________________.

What type of animal uses Malpighian tubules for excretion?

Which organism does not contain kidneys?

Only mammals and birds can produce urine that is _______.

Which part of the brain detects thirst and produces antidiuretic hormone?

The filtering device at the top of each nephron is called a:

The _____________ is the functional unit within the kidney.

Which organ detects and responds to changes in blood glucose levels?

By what means does the Paramecium remove metabolic wastes?

Most invertebrates,such as the annelid,have nephridia.

Bony fish have body fluids that are ___ to seawater,so they continuously drink seawater and actively pump out _____.

Blood flows into the ______________ and components of plasma are forced through the walls of this specialized capillary into the nephron.