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Every cell needs to have a supply of oxygen. In a very small organism, all of the cells are close enough to the surface of the organism to draw oxygen directly from the atmosphere or have the oxygen diffuse through the intercellular fluid to reach the cells. Larger organisms, however, have too many cell layers for the oxygen to diffuse through and reach all the cells at a high enough concentration to maintain life. Therefore, these organisms have evolved methods of circulating either atmospheric air through their bodies or have evolved special organs to harvest and concentrate oxygen from the atmosphere along with a delivery method to get the oxygen to the organism's cells.
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Why do large active animals needs special breathing organs?
because the move around alot
What is the structure of a tiger?
Tigers are large, solid animals. Their structure is similar to other large wild cats. Their skeletons are held together by thick bones and their internal organs are protected by these bones.
What are the organs found in the abdomen?
Most animals have the following organs in the abdomen: stomach, liver, kidneys, small and large intestines, reproductive organs. You will find some additional organs in the abdomens of arthropods such as: the gizzard, crop, spinnerets, book lungs, spiracles and the associated tracheae.
Why does the human body need so many organs?
In order to handle the many different proceses required to handle a very complex machine, the fact is that most other large animals have aproximately the same number of organs.
What organ protect the lungs and support breathing?
There is no organ responsible for protecting the lungs (one may argue the skin), but the ribcage plays a large (if not the largest) role in protecting the lungs.The diaphragm is the primary muscle for breathing and the intercostal muscles (between ribs) are secondary respiratory muscles.
Why are African lions so special?
The African lion is very special because it is a large part of the food chain. These animals are majestic and very important to the people of Africa.
What organs does the large intestine work with?
the organs the small intestine,stomach,and anus
A large portion of the abdominal cavity is taken up by digestive organs which organs are these?
The stomach, small and large intestines, liver and gallbladder, and the pancrease.
What are the two large lightweight organs of the respiratory system?
These two organs are the lungs.The lungs are these two organs.
What organs are after the small intestines?
the large intestine
What organs are in the 4 quadrants?
The Large intestines
In a diagram that shows the respiratory organs of a man and a fish both organs receive a large supply of blood what characteristic of the organs allow them to do so?
why man and fish both supplies a large amount of blood
