In what way does modern evolutionary theory differ from the theory as proposed by darwin

Darwin's theory relied on natural selection as the only known mechanism. ... The modern synthesis of the Theory of Evolution hypothesizes that speciation is most likely due to the gradual accumulation of small changes or mutations at the gene level. In other words, microevolution leads to macroevolution.

it's the cell cycle, but cytokines is when the cell divides.

theres 3 stages interphase,mitosis,and cytokines.

interphase prepares the cell for division.

mitosis is the process of dividing the cell,it has 4 parts interphase,anaphase,metaphase,and telophase.

lastly there's cytokines,that's when the cell divides into 2 daughter cells

voluntary muscles are controlled by the cerebellum.