CBSE Class 10 Answered

i) T?h?e??s?e? ?i?m?p?u?l?s?e?s? ??will reach only?? ?those cells that are connected by nervous tissue, not each and every cell?? ?in the animal bod?y?.?

??i?i??)? ?Once an electrical impulse is generated in?? ?a cell and transmitted, the cell will take so??me time to reset its mechanisms?? ?before it can generate and transmit a new impulse. ??H?e?n?c?e? ????????????????cells?? ?cannot continually create and transmit electrical impulses.

?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????The chemical coordination on the other hand, though slower can potentially reach all cells of the body, regardless of nervous connections. Also it can be done steadily and persistently.