Cell division allows for the growing of new cells. With a unicellular organism, cell division would be the cell's way of reproducing or multiplying, in other words, surviving. Within a multicellular organism, cell division is the organism's way of replacing old, damaged, or dead cells. Within multicellular organisms, cell division also aids in growth.
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then it may effect the entire biodiversity as many rare animals and birds can be killed and they can be existinc from the nanture it will directly affect the ecosystem and species diversity the food chain will also be directly affected<em> </em>as any one animal or species will be existinc the number of other species may rapidly increases or decrease