Explain the need for excretion, limited to toxicity of urea and carbon dioxide
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it helps to the Welfare of the country in the same way we want Limited because it can cause lungs suffocation or it can be lead to cancer like diseases
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The body excretes three main waste materials. These are Carbon Dioxide, Urea and Water. Excretion is a very important feature to us because without it toxic substances will build up in our bodies and kill us. It also helps in maintaining the composition of body fluids
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