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First off the Respiratory System is made up of all the organs in your body that help you breathe. Now, all living things have their own way of breathing, some are similar to humans, others not. Most are though. Certain sea creatures, like the sponge and such, no. I'm not sure what you have in mind for "complex animals" because even our bodily functions are complex, but in any case all living things need to breathe, so that is why "complex animals" have, and need a respiratory system. Hope that helps!
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoAs the size of the organism increases it's surface area to volume decreases. This means that it cannot receive enough oxygen through it's surface to support all the cells in it's body. Therefore it adapts by providing specialised gaseous exchange suface which can be found in the lungs for example.
Wiki User
∙ 9y agoTerrestrial animals have internal respiratory surfaces because they are complexly built animals. They cannot supply enough O2 by using external cells.
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How does exchange of gases takes place in unicellular organisms?
Gas exchange takes place at a respiratory surface-a boundary between the external environment and the interior of the organism. For unicellular organisms the respiratory surface is governed by Fick's law, which determines that respiratory surfaces must have:a large surface areaa thin permeable surfacea moist exchange surface.Read more: How_does_gas_exchange_take_place
How does gas exchange take place?
Gas exchange takes place at a respiratory surface-a boundary between the external environment and the interior of the organism. For unicellular organisms the respiratory surface is governed by Fick's law, which determines that respiratory surfaces must have:a large surface areaa thin permeable surfacea moist exchange surface.
Explain why large active organisms need special surface for exchange?
large organisms need larger area to exchange more substances.but large organisms have small surface area to volume ratio.this means that the surface is not large enough to enable gases and nutrients at the fast rate needed to keep all the cells alive.thus large organisms need special exchange surfaces to provide the body with the nutrients and gaseous exchange they require.
List four requirements for all respiratory surfaces?
The structure of organs is always relevant to function. The function of respiratory surfaces is gaseous exchange. The structure would therefore facilitate this as follows: 1. A single layer of squamous epithelial cells. 2. A large blood supply to the surface. 3. A large surface area. 4. Counter-current flow of medium to blood. (This means that the blood and air/water are flowing in opposite directions so as to increase the concentration gradient).
Why is there more friction between large surfaces?
Because there is more pressure in the surfaces.
What are the characteristics of respiratory surface?
large area
What are the types and characteristics of respiratory surfaces in animals?
large area
What is the special cell that lines the tubes in the respiratory system?
Goblet cells are found in the respiratory epithelium. They produce mucous which coats the tubes. Goblet cells are found scattered among the epithelial lining of organs, such as the intestinal and respiratory tracts. They are found inside the trachea, bronchi, and larger bronchioles in the respiratory tract, small intestines, the large intestine, and conjunctiva in the upper eyelid.
How do you train your respiratory muscles?
suck a large penis
What large muscle is important to the respiratory system?
lungs
Are there differences between major groups of organisms to how fast they respire?
Yes, respiration rates for large organisms are generally higher compared to small organisms. Large organisms require more oxygen than small organisms.
What is a free-floating microscopic organisms that large organisms feed on?
plankton
