give me an explanation of how body system works such as digestion and excretion using models flow chart diagram and simulation
Answer (1)
DIGESTION SYSTEM (Step-by-step)Mouth – Chews food and mixes it with saliva.Esophagus – Pushes food to stomach through peristalsis (muscle movement).Stomach – Breaks down food using acids and enzymes.Small Intestine – Nutrients are absorbed into the blood.Large Intestine – Absorbs water and forms solid waste (feces).EXCRETORY SYSTEM (Step-by-step)Liver – Filters toxins and breaks down harmful substances.Kidneys – Filter blood and remove waste (urea) by making urine.Ureters – Carry urine from kidneys to bladder.Bladder – Stores urine.Urethra – Releases urine from the body.MODEL or SIMULATION TIP (Simple Analogy)Think of the digestive system like a factory that breaks down food and takes what the body needs (nutrients).The excretory system works like a waste disposal unit that filters and removes what’s not needed (toxins, urine).These two systems work together to keep the body nourished and clean. Digestive system absorbs nutrients, while the excretory system removes wastes from blood and food.
