An example of maintaining homeostasis at the system level would be . endocytosis and exocytosis of substances

breathing faster while jogging

the liver stores excess sugar molecules

C) the liver stores excess sugar molecules

Explanation:

If the blood glucose level is too high (ie there's too much sugar in the bloodstream), then the liver will store excess sugar molecules to be released later when the sugar level drops too low. Think of it like storing sugar for a rainy day. Homeostasis in this case is the balancing act of keeping the glucose level at just the right amount.