42. Osmoregulation and Excretion

How do aquatic birds such as the wandering albatross avoid becoming dehydrated even though they live in an environment that is almost entirely salt water?

Which of the following substances is generally filtered from the blood by the kidneys?

In which of the following organisms would there be the greatest need for osmoregulation?

Select the correct statement about osmoregulation.

Which of the following processes must freshwater fish undertake to maintain homeostasis?

As filtrate passes through the long loop of Henle, salt is removed and concentrated in the interstitial fluid of the kidney medulla. Because of this high salt concentration, the nephron is able to __________.

Which of the following is the most accurate and comprehensive description of the function of kidneys?

Many insects, birds, and other reptiles excrete nitrogenous wastes in the form of uric acid, which __________.

Which of the following is filtered from blood but not normally found in urine?

The functional units of kidneys are __________.

Osmoregulation in a freshwater fish would not include ___________.

Which type of organism would have the least chance of long-term survival in the given environment?

The primary nitrogen-containing compound excreted by our kidneys is __________.

In each nephron of the kidney, the glomerulus and Bowman's capsule __________.

Osmoconformers are animals that __________.