Answer all in assay form using simple english

Here is the answer to question 1: a) i) Excretion: The kidney's primary role in excretion is to filter waste products from the blood. It removes metabolic wastes such as urea, uric acid, and creatinine, along with excess salts and water, forming urine. This process ensures that harmful substances do not accumulate in the body. ii) Osmoregulation: The kidney plays a crucial role in osmoregulation by maintaining the body's water and salt balance. It regulates the concentration of solutes in the blood and extracellular fluid, ensuring that the osmotic pressure remains constant. This is achieved by adjusting the amount of water reabsorbed or excreted, thereby controlling urine concentration. b) One common disorder associated with the kidney is kidney stones. These are hard deposits made of minerals and salts that form inside the kidneys. They can cause severe pain, blood in the urine, and blockages in the urinary tract. Remedies include increasing fluid intake to help pass smaller stones, medication to relax the ureters, and medical procedures like lithotripsy (using shock waves to break stones) or surgery for larger stones. c) There is limited excretion of substances in plants for two main reasons: • Plants have a lower metabolic rate compared to animals, which means they produce fewer waste products. • Plants can reuse many of their by-products from metabolic processes. For example, carbon dioxide produced during respiration is used for photosynthesis, and oxygen from photosynthesis is used for respiration. They also store waste products in non-toxic forms within their tissues, such as in leaves that are later shed. Send me the next one 📸