4.Why would a cell need to have the option to make or not make protein

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 was the land like over 500 million years ago? what was under the sea?

Which law represents a balanced chemical equation?