<span><span>1. </span>Reproduction, is as vital for an entire race to survive. It prolongs their generation onwards and offspring to the next centuries to pass by.</span> <span><span> 2. </span>Obtaining energy. In both humans and animals, even plants is a challenge because these creatures need to work in order to obtain these need resource from food –preys.</span> <span><span> 3. </span>Maintaining structure. For the living organisms to still exist they need to keep themselves intact. Combating diseases and having nutrition. This is a by-product of having energy. </span><span> 4. Irritability. Responding to stimulus 5. Excretion. Able to dispose waste 6. Movement. Being able to be in one place to another. 7. Growth. Able to develop. 8. Death. </span>