Exam 26: Maintaining the Internal Environment

Explain how Bowman's capsule works.

All vertebrates other than mammals are ectothermic.

Which hormone is secreted by the pancreas to lower high blood glucose levels?

Which excretory organs are found in insects?

What is the waste product of fish?

The kidneys of the _____ are so efficient it never has to drink water.

Which nutrient,when metabolized for energy,produces nitrogenous wastes?

When blood sugar is low,______ from the pancreas stimulates the breakdown of _______ in the liver.

Some mammals,like the kangaroo rat of the desert,have extremely long loops of Henle in their kidneys.What purpose must this serve?

Selective reabsorption of components of the glomerular filtrate occurs where?

Reptiles,birds,and insects excrete nitrogenous wastes in the form of:

Freshwater fish drink water all the time to compensate for their tendency to lose water.

Which of the following are regulated by the kidneys?

Which of the following is not part of the normal glomerular filtrate?

All of the following animals lack the enzyme uricase except:

The amphibian kidney is identical to that of:

Most mammals have uricase,which converts uric acid into ________.

In humans,an excessive accumulation of uric acid in the joints produces a condition known as ______.

All of the following are endothermic except:

In a homeostatic system,the integrating system executes changes to compensate for deviances from the set point.