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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.
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 small organs of cell have larger metabolic activity compared to larger organs?
Small organs have high surface area:volume ratio.So they are active than large organs.
What are the organs found in the abdomen?
Organs found in the abdomen include the liver, spleen, stomach, pancreas, gallbladder, small intestine, large intestine, and kidneys. The abdomen also contains the abdominal aorta, inferior vena cava, and various lymph nodes.
What organs does the large intestine work with?
the organs the small intestine,stomach,and anus
What muscle helps with food digestion and breathing?
Previous answer: "involuntary muscles"This answer is not accurate. While breathing muscles do act involuntarily, they can also be activated voluntarily. The two primary muscles responsible for breathing are the diaphragm and the tranversus abdominus. The diaphragm is the primary muscle for inhalation, if you're breathing correctly. The transverse is the primary muscle for forced exhalation.Since both muscle, when contracting, move inward into the abdominal cavity, where your organs of digestion are, they move the internal organs, essentially creating an internal massage mechanism for the large and small intestines, which helps keep smooth motion going in the involuntary pyloric (intestinal) muscles.
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
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 in the 4 quadrants?
The Large intestines
What organs are after the small intestines?
the large intestine
