(a)[3]
Complete Table 6.2 by writing the letter from Fig. 6.1 that identifies each described structure.
(b)[3]
Describe how nicotine affects the cardiovascular system in the short term.
(c(i))[1]
State the difference between adult cardiac myocytes that have completed the cell cycle and those that have stopped at the end of mitosis.
(c(ii))[2]
Suggest why it could be a disadvantage that the cell cycle has stopped in most adult cardiac myocytes.