Using suitable examples, critically review the pathological and physiological changes that are associated with bio gerontology of skin and/or bone and/or brain and/or joint tissue

its a Human pathology case study deadline in 191115
PART A: Using suitable examples, critically review the pathological and physiological changes that are associated with bio gerontology of skin and/or bone and/or brain and/or joint tissue (75%).

PART B: On the basis of contemporary cutting edge research, discuss whether you consider the statement Individuals die of old age is correct (25%).