Which metaphor for aging does shakespeare use in sonnet 73? a. air b. choirs c. birds d. autumn

The correct answer is option D. Autumn.

The line 'When yellow leaves, or none, or few, do hang  Upon those boughs' states the presence of a few leaf on the branch of tree, by this line, the poet want to convey the message of the dullness of the old-age, which is similar to the autumn trees.

The line 'which shake against the cold' further confirms the autumn season, as in autumn season, the tree shed their leaves and a few leaves are left and that to are pale and faded. Also, through this line, the shaking of the leaves signify the difficulties in handling the situations during old age.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.