What are good analogies for nucleus

Glucose is a form of sugar found in the blood cells use glucose as a source of energy, but too much or too little can cause serious health issues so, the body uses the hormone insulin to regulate glucose n the blood insulin maintain glucose levels in the blood if blood glucose lovels got very high, what would you expect to see happen to insulin levels?

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.