Heat always moves . from a warmer object to a colder object
in a straight line
from a colder object to a warmer object.
upward

hot to cold

Explanation:

it moves from a warmer to a colder object, as explained by the second law of thermodynamics

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.