The digestive system’s purpose is to break down food, extract the nutrients needed by the body, and eliminate waste. which of the following structures is crucial for the digestive system to function?

answer; i believe the answer is hydraulic action;

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls

when it is at an intermediate population density

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?