The correct answer is '<span> balance consumption of food with use and storage of nutrients </span>'. All animals can only survive if the amount of food consumed is equal to or greater than that required for growth and respiration. Most animals have adapted to be able to store excess food (such as fat) during times of plenty, to be able to survive when there is insufficient food available.
Three functions of a unicellular organism is its defense system, reproduction system, and its digestive system.
It is controlled by negative feedback loop.Let's say you have high glucose level in your blood,that will be registered and pancreas will produce more insulin to keep it in the normal range.Therefore by negative feedback loop it will regulate homeostasis
Water cycle because water or a chemical element is continuously recycled in an ecosystem which is biogeochemical
