An example of a 3rd class lever is a pair of tweezers!
During prophase, the parent cell chromosomes — which were duplicated during S phase — condense and become thousands of times more compact than they were during interphase. ... Cohesin forms rings that hold the sister chromatids together, whereas condensin forms rings that coil the chromosomes into highly compact forms.
Cells are part of of all living things.If we didn’t have cells we wouldn’t be able to define whether something is alive or not. Cells make tissue in the body too and tissue makes organs like your brain, heart, liver, spleen & stomach so therefore without them we wouldn’t exist.