Final answer:
Hypoglycemia is characterized by cool, pale skin, headaches, tremors, and clammy skin, as a result of low blood sugar levels. Polyuria, polydipsia, and polyphagia are associated with hyperglycemia, not hypoglycemia.
Step-by-step explanation:
The student asked about the symptoms of hypoglycemia. Hypoglycemia occurs when blood sugar (glucose) levels are too low. Symptoms of hypoglycemia include a feeling of being cool, having a pale complexion, experiencing headaches, trembling or tremors, and having clammy skin. These are often a result of the body's response to insufficient glucose levels, which is critical for the body's energy needs. In contrast, symptoms such as polyuria (frequent urination), polydipsia (frequent thirst), and polyphagia (frequent hunger) are more commonly associated with hyperglycemia, which occurs when blood sugar levels are too high, commonly seen in diabetes mellitus.