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As Biology - tissue, organ, organ system -- urgent watch

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    I have my mock exam tomorrow and i was looking through specification and came across this point
    Discuss the importance of cooperation between cells,tissues,organs,and organ systems

    I'm stuck please help...
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    think about how each makes the next ( cells make up tissues, tissues make up organs, ect.) and think about how without the other wont work, such as cells are filled with organelles, which cause them to function, similarly, take the respiration system, so within it, there are the lungs, (without which the system wont work), then look at how the lungs are made of of tissues filled with smaller parts, such as bronchi, which lead to bronchioles, which lead to Alveoli; these are important as the cells that make up this tissue, are ideal, as they are very thin, and provide a large surface area for gas exchanges such as O2 and CO2 ( in and out), so overall, without the specialised individual ''thing'' each component provides, helps build up the bigger picture and make the while organ system work, because without the cells in the Alveoli being thin and having a large surface area, along with having elastic properties to help with expansion, the whole respiration system wont work. hope this helps
 
 
 

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