Without ________, the human body would stop working.
A. A kidney
B. Movement of one’s limbs
C. Tendons
D. Blood
A?
Nope.
https://www.kidney.org/atoz/content/onekidney
so D?
Yes. D is correct.
Yes, the correct answer is A. A kidney.
Explanation:
The human body consists of many vital organs that work together to maintain various bodily functions. Each organ plays an important role in the overall functioning of the body, but the kidney is particularly crucial for the following reasons:
1. Filtration: The kidneys are responsible for filtering waste and toxins from the blood, which helps maintain a balance of electrolytes and other substances in the body.
2. Fluid Balance: The kidneys regulate the body's fluid balance by adjusting the amount of water and electrolytes that are excreted in urine. This is essential for maintaining proper hydration and preventing dehydration or fluid overload.
3. Blood Pressure Regulation: The kidneys play a critical role in regulating blood pressure by adjusting the volume of blood in the body and releasing hormones that control blood vessel constriction and fluid retention.
4. Acid-Base Balance: The kidneys help maintain the body's acid-base balance by controlling the excretion of hydrogen ions and reabsorbing bicarbonate ions. This helps prevent imbalances in pH levels that can affect various bodily functions.
Without proper kidney function, the accumulation of waste, fluid imbalance, and disruption of essential processes can lead to severe health consequences. Therefore, without a kidney, the human body would eventually stop working.