Plz will mark ! nerve cells in your body no longer divide. what phase of the cell cycle are nerve cells always in? why?

Nerve cells lack centriole, which is the reason they cannot undergo mitosis and divide to form new cells. ... Neurons are differentiated cells and are in quiescence or G0 phase of cell cycle. Once neurons become fully mature, they do not move any further into the cell division cycle.

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

genetic variation will increase because of a new habitat and food source.

explanation: