Answer:
Frogs must keep their skin moist. Otherwise, oxygen can't pass easily through it and the frog suffocates.
Dependent Patient
Sit the patient fully upright or in an elevated side-lying position to prevent aspiration during mouth cleaning.
Inspect the patient's mouth: ...
Remove loose material or debris (especially important if patient is NPO/Nothing by Mouth): ...
Brush the teeth with toothpaste.
Answer:
There are air filters to purify the air and water filters to clean the water. Well, the kidneys are like a filtering system, too. They contain nephrons, which filter waste from the blood in two stages. First, nephrons take waste as well as needed materials out of blood. Then, the materials the body needs (like water and glucose) are returned to the blood and wastes are eliminated from the body. This is one way the kidneys maintain homeostasis. The kidneys also regulate the amount of water in the body. The amount of water the kidneys return to the blood depends on the conditions inside and outside of the body. This is another way the excretory system maintains homeostasis. For example, you will make more urine on a cool day when you have drunk a lot of water than you will on a hot day when you've hardly had anything to drink.
(I answered a question similar to this some time ago so you might also find it there.) Hope It Helps!
