Identify whether a shortage of any of the following materials would affect the LIGHT REACTION, the CALVIN CYCLE, BOTH, or NEITHER.

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.

c. heat from the poles back down towards the equator.

what is this saying?