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.
The Ethics of Using Human Embryonic Stem Cells in Research. Assume for the sake of argument that it is morally impermissible to destroy human embryos<span>. It does not follow that all research with HESCs is impermissible, as it is sometimes </span>permissible <span>to benefit from </span>moral<span> wrongs.</span>
The flagella and pili are similar in that they are both composed of proteins. <span>Flagella is made up of protein flagellin, while pili is composed of protein pilin. Both flagella and pili are tubular hollow, filamentous structures of bacteria. Both extend from the surface of the bacterial wall.</span>
